Edgar Filing: NUVEEN SELECT MATURITIES MUNICIPAL FUND

Nuveen Select Maturities Municipal Fund

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-07056

Nuveen Select Maturities Municipal Fund

(Exact name of registrant as specified in charter)

Nuveen Investments

333 West Wacker Drive, Chicago, Illinois 60606

(Address of principal executive offices) (Zip code)

Gifford R. Zimmerman

Vice President and Secretary

333 West Wacker Drive, Chicago, Illinois 60606

(Name and address of agent for service)

Registrant’s telephone number, including area code: 312-917-7700

Date of fiscal year end: March 31

Date of reporting period: June 30, 2017

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

NIM

Nuveen Select Maturities Municipal Fund

Portfolio of Investments

June 30, 2017 (Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	LONG-TERM INVESTMENTS – 99.0%
	MUNICIPAL BONDS – 99.0%
	Alabama – 0.3%
$ 295	Black Belt Energy Gas District, Alabama, Gas Supply Revenue Bonds, Series 2016A, 4.000%, 7/01/46 (Mandatory Put 6/01/21)	3/21 at 100.59	A1	$318,753
125	Mobile Spring Hill College Educational Building Authority, Alabama, Revenue Bonds, Spring Hill College Project, Series 2015, 5.000%, 4/15/27	4/25 at 100.00	N/R	126,034
420	Total Alabama			444,787
	Alaska – 0.1%
155	Alaska State, Sport Fishing Revenue Bonds, Refunding Series 2011, 5.000%, 4/01/21	4/20 at 100.00	A1	170,812
	Arizona – 3.1%
	Arizona Health Facilities Authority, Hospital System Revenue Bonds, Phoenix Children's Hospital, Refunding Series 2012A:
275	5.000%, 2/01/20	No Opt. Call	BBB+	297,594
290	5.000%, 2/01/27	2/22 at 100.00	BBB+	319,020
	Arizona Sports and Tourism Authority, Tax Revenue Bonds, Multipurpose Stadium Facility Project, Refunding Senior Series 2012A:
425	5.000%, 7/01/25	7/22 at 100.00	A1	472,779
685	5.000%, 7/01/26	7/22 at 100.00	A1	756,925
685	5.000%, 7/01/27	7/22 at 100.00	A1	752,890
115	Pima County Industrial Development Authority, Arizona, Revenue Bonds, Tucson Electric Power Company Project, Series 2013A, 4.000%, 9/01/29	3/23 at 100.00	A-	120,736
	Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Citigroup Energy Inc. Prepay Contract Obligations, Series 2007:
150	5.000%, 12/01/17	No Opt. Call	BBB+	152,268
135	5.250%, 12/01/19	No Opt. Call	BBB+	145,576
165	5.000%, 12/01/32	No Opt. Call	BBB+	195,162
735	5.000%, 12/01/37	No Opt. Call	BBB+	878,119
3,660	Total Arizona			4,091,069
	Arkansas – 0.6%
200	Bryant School District 25, Saline County, Arkansas, General Obligation Bonds, Refunding & Construction Series 2017A, 3.000%, 2/01/32 (WI/DD, Settling 7/27/17)	8/22 at 100.00	Aa2	192,204
540	Independence County, Arkansas, Pollution Control Revenue Bonds, Arkansas Power and Light Company Project, Series 2013, 2.375%, 1/01/21	No Opt. Call	A	555,503
740	Total Arkansas			747,707
	California – 6.3%
300	Alameda Corridor Transportation Authority, California, Revenue Bonds, Refunding Senior Lien Series 2013A, 5.000%, 10/01/23	No Opt. Call	A	354,432
390	California Health Facilities Financing Authority, Revenue Bonds, El Camino Hospital, Series 2017, 3.750%, 2/01/32	2/27 at 100.00	A+	400,113

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	California (continued)
$ 500	California Health Facilities Financing Authority, Revenue Bonds, Kaiser Permanente System, Green Series 2017A-1, 5.000%, 11/01/27	No Opt. Call	AA-	$627,375
275	California Municipal Finance Authority, Charter School Revenue Bonds, Palmdale Aerospace Academy Project, Series 2016A, 144A, 5.000%, 7/01/31	7/26 at 100.00	BB	289,663
105	California Pollution Control Financing Authority, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Refunding Series 2015B-2, 3.125%, 11/01/40 (Alternative Minimum Tax) (Mandatory Put 11/03/25)	No Opt. Call	A-	108,330
290	California Pollution Control Financing Authority, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Series 2015A-1, 3.375%, 7/01/25 (Alternative Minimum Tax)	No Opt. Call	A-	305,822
205	California Pollution Control Financing Authority, Solid Waste Disposal Revenue Bonds, Waste Management, Inc. Project, Refunding Series 2015B-1, 3.000%, 11/01/25	No Opt. Call	A-	212,181
525	California State, General Obligation Bonds, Various Purpose Series 2010, 5.500%, 3/01/40	3/20 at 100.00	AA-	581,805
125	California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2014A, 5.250%, 12/01/29	12/24 at 100.00	BB+	138,750
250	Delano, California, Certificates of Participation, Delano Regional Medical Center, Series 2012, 5.000%, 1/01/24	1/23 at 100.00	BBB	275,190
100	Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed Bonds, Series 2007A-1, 5.000%, 6/01/33	9/17 at 100.00	B+	100,474
100	Lake Elsinore Public Financing Authority, California, Local Agency Revenue Bonds, Canyon Hills Improvement Area A & C, Series 2014C, 5.000%, 9/01/32	9/24 at 100.00	N/R	109,833
365	Lake Elsinore Redevelopment Agency, California, Special Tax Bonds, Community Facilities District 90-2, Series 2007A, 4.500%, 10/01/24 – AGM Insured	10/17 at 100.00	AA	368,022
1,000	Mount San Antonio Community College District, Los Angeles County, California, General Obligation Bonds, Election of 2008, Series 2013A, 0.000%, 8/01/28 (4)	2/28 at 100.00	Aa1	948,330
2,000	Palomar Pomerado Health, California, General Obligation Bonds, Series 2009A, 0.000%, 8/01/25 – AGC Insured	No Opt. Call	AA	1,607,960
35	Riverside County Transportation Commission, California, Toll Revenue Senior Lien Bonds, Series 2013A, 5.750%, 6/01/44	6/23 at 100.00	BBB-	39,636
2,000	San Diego Community College District, California, General Obligation Bonds, Refunding Series 2011, 0.000%, 8/01/37	No Opt. Call	Aaa	965,260
415	San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue Bonds, Refunding Senior Lien Series 2014A, 5.000%, 1/15/29	1/25 at 100.00	BBB	467,809
215	Washington Township Health Care District, California, Revenue Bonds, Refunding Series 2015A, 5.000%, 7/01/25	No Opt. Call	Baa1	250,888
9,195	Total California			8,151,873
	Colorado – 1.4%
250	Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2008D-3, 5.000%, 10/01/38 (Mandatory Put 11/12/21)	No Opt. Call	BBB+	277,813
	E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:
300	0.000%, 9/01/29 – NPFG Insured	No Opt. Call	A	201,153
250	0.000%, 9/01/33 – NPFG Insured	No Opt. Call	A	138,085
10	E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2007A-1, 5.250%, 9/01/18 – NPFG Insured	No Opt. Call	A	10,424
1,000	E-470 Public Highway Authority, Colorado, Toll Revenue Bonds, Series 2004B, 0.000%, 3/01/36 – NPFG Insured	9/20 at 41.72	A	371,500

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Colorado (continued)
$ 500	Plaza Metropolitan District 1, Lakewood, Colorado, Tax Increment Revenue Bonds, Refunding Series 2013, 144A, 5.000%, 12/01/20	No Opt. Call	N/R	$534,815
210	Regional Transportation District, Colorado, Denver Transit Partners Eagle P3 Project Private Activity Bonds, Series 2010, 6.000%, 1/15/41	7/20 at 100.00	BBB+	231,947
2,520	Total Colorado			1,765,737
	Connecticut – 0.8%
100	Connecticut Health and Educational Facilities Authority, Revenue Bonds, Healthcare Facility Expansion Church Home of Hartford Inc. Project, TEMPS-50 Series 2016B-2, 144A, 2.875%, 9/01/20	9/17 at 100.00	BB	99,443
905	Connecticut Health and Educational Facilities Authority, Revenue Bonds, Yale University, Series 2010A-3, 0.875%, 7/01/49 (Mandatory Put 2/08/18)	No Opt. Call	AAA	904,547
1,005	Total Connecticut			1,003,990
	Delaware – 0.1%
170	Delaware Health Facilities Authority, Revenue Bonds, Nanticoke Memorial Hospital, Series 2013, 5.000%, 7/01/28	7/23 at 100.00	BBB	184,033
	District of Columbia – 0.9%
120	District of Columbia Student Dormitory Revenue Bonds, Provident Group - Howard Properties LLC Issue, Series 2013, 5.000%, 10/01/30	10/22 at 100.00	BB+	117,466
935	District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2001, 6.500%, 5/15/33	No Opt. Call	Baa1	1,061,066
1,055	Total District of Columbia			1,178,532
	Florida – 3.8%
300	Cape Coral, Florida, Utility Improvement Assessment Bonds, Refunding Various Areas Series 2017, 3.000%, 9/01/28 – AGM Insured	No Opt. Call	AA	299,361
	Citizens Property Insurance Corporation, Florida, Coastal Account Senior Secured Bonds, Series 2015A-1:
555	5.000%, 6/01/22	12/21 at 100.00	AA	637,401
365	5.000%, 6/01/25	12/24 at 100.00	AA	440,993
200	Citizens Property Insurance Corporation, Florida, High-Risk Account Revenue Bonds, Coastal Account Senior Secured Series 2011A-1, 5.000%, 6/01/18	No Opt. Call	AA	207,186
	Citizens Property Insurance Corporation, Florida, Personal and Commercial Lines Account Bonds, Senior Secured Series 2012A-1:
50	5.000%, 6/01/18	No Opt. Call	AA	51,797
455	5.000%, 6/01/20	No Opt. Call	AA	502,197
	Collier County Educational Facilities Authority, Florida, Revenue Bonds, Hodges University, Refunding Series 2013:
90	4.750%, 11/01/23	No Opt. Call	BBB-	94,723
370	6.000%, 11/01/33	11/23 at 100.00	BBB-	417,674
	Miami-Dade County, Florida, Public Facilities Revenue Bonds, Jackson Health System, Series 2009:
10	5.500%, 6/01/29 (Pre-refunded 6/01/19) – AGM Insured	6/19 at 100.00	AA (5)	10,843
10	5.625%, 6/01/34 (Pre-refunded 6/01/19) – AGC Insured	6/19 at 100.00	AA (5)	10,867
625	North Sumter County Utility Dependent District, Florida, Utility Revenue Bonds, Series 2010, 5.000%, 10/01/20	No Opt. Call	A	667,725

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Florida (continued)
$ 90	Palm Beach County Health Facilities Authority, Florida, Hospital Revenue Bonds, BRCH Corporation Obligated Group, Refunding Series 2014, 5.000%, 12/01/31	12/24 at 100.00	BBB+	$99,495
720	South Miami Health Facilities Authority, Florida, Hospital Revenue, Baptist Health System Obligation Group, Refunding Series 2007, 5.000%, 8/15/27	8/17 at 100.00	AA-	723,629
	Tampa, Florida, Cigarette Tax Allocation Bonds, H. Lee Moffitt Cancer Center Project, Refunding & Capital Improvement Series 2012A:
120	5.000%, 9/01/22	No Opt. Call	A+	137,953
350	5.000%, 9/01/23	9/22 at 100.00	A+	399,525
185	5.000%, 9/01/25	9/22 at 100.00	A+	213,072
4,495	Total Florida			4,914,441
	Georgia – 0.9%
180	Cherokee County Water and Sewerage Authority, Georgia, Revenue Bonds, Series 1995, 5.200%, 8/01/25 (Pre-refunded 8/01/22) – NPFG Insured	8/22 at 100.00	A (5)	196,393
900	Private Colleges and Universities Authority, Georgia, Revenue Bonds, Mercer University, Refunding Series 2012C, 5.250%, 10/01/23	10/22 at 100.00	Baa2	1,020,852
1,080	Total Georgia			1,217,245
	Guam – 0.3%
140	Guam Government Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2013, 5.500%, 7/01/43	7/23 at 100.00	A-	155,442
150	Guam International Airport Authority, Revenue Bonds, Series 2013C, 6.375%, 10/01/43 (Alternative Minimum Tax)	10/23 at 100.00	BBB	171,486
290	Total Guam			326,928
	Hawaii – 1.4%
200	Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaii Pacific University, Series 2013A, 6.250%, 7/01/27	7/23 at 100.00	BB	212,934
1,000	Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaiian Electric Company, Inc. and Subsidiary Projects, Series 2017A, 3.100%, 5/01/26 (Alternative Minimum Tax)	No Opt. Call	A-	1,007,530
20	Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Queens Health Systems, Series 2015A, 5.000%, 7/01/29	7/25 at 100.00	AA-	23,440
510	Hawaiian Electric Company Inc. and Its Subsidiaries, Special Purpose Revenue Bonds, Department of Budget and Finance of the State of Hawaii, Series 2015, 3.250%, 1/01/25 (Alternative Minimum Tax)	No Opt. Call	A-	532,109
1,730	Total Hawaii			1,776,013
	Idaho – 0.4%
565	Nez Perce County, Idaho, Pollution Control Revenue Bonds, Potlatch Corporation Project, Refunding Series 2016, 2.750%, 10/01/24	No Opt. Call	Ba1	546,717
	Illinois – 17.0%
	Cary, Illinois, Special Tax Bonds, Special Service Area 1, Refunding Series 2016:
10	2.150%, 3/01/23 – BAM Insured	No Opt. Call	AA	9,883
10	2.350%, 3/01/24 – BAM Insured	No Opt. Call	AA	9,867
25	2.700%, 3/01/26 – BAM Insured	3/25 at 100.00	AA	24,598
25	2.900%, 3/01/28 – BAM Insured	3/25 at 100.00	AA	24,069
25	3.050%, 3/01/30 – BAM Insured	3/25 at 100.00	AA	24,114

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Illinois (continued)
	Cary, Illinois, Special Tax Bonds, Special Service Area 2, Refunding Series 2016:
$ 15	2.150%, 3/01/23 – BAM Insured	No Opt. Call	AA	$14,825
15	2.350%, 3/01/24 – BAM Insured	No Opt. Call	AA	14,800
25	2.700%, 3/01/26 – BAM Insured	3/25 at 100.00	AA	24,598
35	2.900%, 3/01/28 – BAM Insured	3/25 at 100.00	AA	33,880
40	3.050%, 3/01/30 – BAM Insured	3/25 at 100.00	AA	38,388
1,215	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Capital Improvement Revenues, Series 2016, 6.000%, 4/01/46	4/27 at 100.00	A	1,280,902
235	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Refunding Series 2010F, 5.000%, 12/01/17	No Opt. Call	B+	232,998
300	Chicago, Illinois, General Airport Revenue Bonds, O'Hare International Airport, Senior Lien Refunding Series 2015A, 5.000%, 1/01/33 (Alternative Minimum Tax)	1/25 at 100.00	A	334,707
75	Chicago, Illinois, General Obligation Bonds, Project and Refunding Series 2009C, 5.000%, 1/01/27	1/19 at 100.00	BBB+	74,776
	Chicago, Illinois, General Obligation Bonds, Refunding Series 2016C:
200	5.000%, 1/01/23	No Opt. Call	BBB+	203,268
225	5.000%, 1/01/24	No Opt. Call	BBB+	227,864
190	5.000%, 1/01/25	No Opt. Call	BBB+	190,707
55	5.000%, 1/01/26	No Opt. Call	BBB+	55,265
325	Cook County, Illinois, General Obligation Bonds, Refunding Series 2012C, 5.000%, 11/15/21	No Opt. Call	AA-	361,601
185	Cook County, Illinois, General Obligation Bonds, Refunding Series 2016A, 5.000%, 11/15/20	No Opt. Call	AA-	202,277
1,997	Huntley, Illinois, Special Service Area 9, Special Tax Bonds, Series 2007, 5.100%, 3/01/28 – AGC Insured	9/17 at 100.00	AA	2,003,750
625	Illinois Finance Authority, Gas Supply Refunding Revenue Bonds, The Peoples Gas Light and Coke Company Project, Series 2010B, 1.875%, 2/01/33 (Mandatory Put 8/01/20)	No Opt. Call	Aa3	630,681
455	Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2012, 5.000%, 9/01/27	9/22 at 100.00	BBB	494,621
560	Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2014A, 4.625%, 9/01/39	9/24 at 100.00	BBB	573,003
275	Illinois Finance Authority, Revenue Bonds, Northwest Community Hospital, Series 2008A, 5.500%, 7/01/38 (Pre-refunded 7/01/18)	7/18 at 100.00	A+ (5)	287,543
890	Illinois Finance Authority, Revenue Bonds, OSF Healthcare System, Series 2007A, 5.750%, 11/15/37 (Pre-refunded 11/15/17)	11/17 at 100.00	A (5)	906,518
1,850	Illinois Finance Authority, Revenue Bonds, Presence Health Network, Series 2016C, 4.000%, 2/15/24	No Opt. Call	BBB	1,975,855
250	Illinois Finance Authority, Revenue Bonds, Roosevelt University, Series 2007, 5.250%, 4/01/22	9/17 at 100.00	Ba2	250,102
	Illinois State, General Obligation Bonds, February Series 2014:
370	5.000%, 2/01/25	2/24 at 100.00	BBB	384,915
325	5.000%, 2/01/26	2/24 at 100.00	BBB	335,579

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Illinois (continued)
	Illinois State, General Obligation Bonds, Refunding Series 2012:
$ 390	5.000%, 8/01/20	No Opt. Call	BBB	$404,992
335	5.000%, 8/01/21	No Opt. Call	BBB	349,191
1,000	5.000%, 8/01/22	No Opt. Call	BBB	1,045,500
320	5.000%, 8/01/23	No Opt. Call	BBB	334,342
300	Illinois State, General Obligation Bonds, Series 2012A, 4.000%, 1/01/20	No Opt. Call	BBB	303,420
	Illinois State, General Obligation Bonds, Series 2013:
280	5.500%, 7/01/25	7/23 at 100.00	BBB	299,138
240	5.500%, 7/01/26	7/23 at 100.00	BBB	255,226
470	Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Refunding Senior Lien Series 2016A, 5.000%, 12/01/31	1/26 at 100.00	AA-	541,228
450	Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2015B, 5.000%, 1/01/37	1/26 at 100.00	AA-	509,166
1,380	Kane & DeKalb Counties Community Unit School District 301, Illinois, General Obligation Bonds, Series 2006, 0.000%, 12/01/18 – NPFG Insured	No Opt. Call	Aa2	1,349,819
1,000	Peoria Public Building Commission, Illinois, School District Facility Revenue Bonds, Peoria County School District 150 Project, Series 2009A, 0.000%, 12/01/22 – AGC Insured	12/18 at 79.62	AA	778,460
	Railsplitter Tobacco Settlement Authority, Illinois, Tobacco Settlement Revenue Bonds, Series 2010:
725	5.000%, 6/01/19	No Opt. Call	A	774,822
1,025	5.250%, 6/01/21	No Opt. Call	A	1,167,823
60	6.250%, 6/01/24	9/17 at 100.00	A	61,253
310	Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties, Illinois, General Obligation Bonds, Series 1994D, 7.750%, 6/01/19 – FGIC Insured	No Opt. Call	AA	337,323
	Southwestern Illinois Development Authority, Health Facility Revenue Bonds, Memorial Group, Inc., Series 2013:
50	7.250%, 11/01/33	11/23 at 100.00	AA	66,979
95	7.250%, 11/01/36	11/23 at 100.00	AA	127,261
200	7.625%, 11/01/48	11/23 at 100.00	AA	272,420
	Springfield, Illinois, Electric Revenue Bonds, Senior Lien Series 2015:
230	5.000%, 3/01/33	3/25 at 100.00	A	258,948
145	5.000%, 3/01/34 – AGM Insured	3/25 at 100.00	AA	163,566
500	Sterling, Whiteside County, Illinois, General Obligation Bonds, Alternate Revenue Source, Series 2012, 4.000%, 11/01/22	No Opt. Call	A+	549,915
355	Will, Grundy, Kendall, LaSalle, Kankakee, Livingston and Cook Counties Community College District 525 Joliet Junior College, Illinois, General Obligation Bond, Series 2008, 5.750%, 6/01/28	6/18 at 100.00	AA	368,650
455	Williamson & Johnson Counties Community Unit School District 2, Marion, Illinois, Limited Tax General Obligation Lease Certificates, Series 2011, 7.000%, 10/15/22	10/19 at 103.00	BBB+	496,928
21,142	Total Illinois			22,042,324
	Indiana – 2.2%
140	Indiana Finance Authority, Educational Facilities Revenue Bonds, Drexel Foundation For Educational Excellence, Inc., Series 2009A, 6.000%, 10/01/21	10/19 at 100.00	B-	139,693

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Indiana (continued)
$ 175	Indiana Finance Authority, Tax-Exempt Private Activity Revenue Bonds, I-69 Section 5 Project, Series 2014, 5.250%, 9/01/34 (Alternative Minimum Tax)	9/24 at 100.00	CCC-	$186,342
140	Indianapolis, Indiana, Thermal Energy System Revenue Bonds, Refunding First Lien Series 2014A, 5.000%, 10/01/31	10/24 at 100.00	A	160,282
255	Jasper County, Indiana, Pollution Control Revenue Refunding Bonds, Northern Indiana Public Service Company Project, Series 1994A Remarketed, 5.850%, 4/01/19 – NPFG Insured	No Opt. Call	A	272,080
250	Lake County Building Corporation, Indiana, First Mortgage Bonds, Series 2012, 4.750%, 2/01/21	No Opt. Call	N/R	262,085
250	Vanderburgh County, Indiana, Redevelopment District Tax Increment Revenue bonds, Refunding Series 2014, 5.000%, 2/01/29	8/24 at 100.00	A	288,667
865	Whiting, Indiana, Environmental Facilities Revenue Bonds, BP Products North America Inc. Project, Series 2008, 1.850%, 6/01/44 (Mandatory Put 10/01/19)	No Opt. Call	A1	870,026
600	Whiting, Indiana, Environmental Facilities Revenue Bonds, BP Products North America Inc. Project, Series 2015, 5.000%, 11/01/45 (Alternative Minimum Tax) (Mandatory Put 11/01/22)	No Opt. Call	A1	686,268
2,675	Total Indiana			2,865,443
	Iowa – 1.1%
500	Ames, Iowa, Hospital Revenue Bonds, Mary Greeley Medical Center, Series 2011, 5.250%, 6/15/27 (Pre-refunded 6/15/20)	6/20 at 100.00	A2 (5)	558,550
	Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2013:
220	5.000%, 12/01/19	No Opt. Call	B	225,744
215	5.500%, 12/01/22	12/18 at 100.00	B	219,530
200	5.250%, 12/01/25	12/23 at 100.00	B	207,036
185	Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2016, 144A, 5.875%, 12/01/27	6/19 at 105.00	B	191,978
1,320	Total Iowa			1,402,838
	Kansas – 0.4%
380	University of Kansas Hospital Authority, Health Facilities Revenue Bonds, KU Health System, Series 2017A, 3.250%, 3/01/32	3/27 at 100.00	AA-	379,107
105	Wyandotte County/Kansas City Unified Government, Kansas, Utility System Revenue Bonds, Refunding & Improvement Series 2014A, 5.000%, 9/01/22	No Opt. Call	A+	121,849
485	Total Kansas			500,956
	Kentucky – 1.4%
550	Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Health, Refunding Series 2017A, 5.000%, 6/01/31	6/27 at 100.00	BBB	618,134
350	Kentucky Economic Development Finance Authority, Louisville Arena Project Revenue Bonds, Louisville Arena Authority, Inc., Series 2008-A1, 5.750%, 12/01/28 – AGC Insured	6/18 at 100.00	AA	356,468
500	Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Series 2013A, 5.000%, 7/01/17	No Opt. Call	BBB-	500,045
340	Lexington-Fayette Urban County Government Public Facilities Corporation, Kentucky State Lease Revenue Bonds, Eastern State Hospital Project, Series 2011A, 5.250%, 6/01/29	6/21 at 100.00	Aa3	378,743
1,740	Total Kentucky			1,853,390

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Louisiana – 3.1%
$ 240	De Soto Parrish, Louisiana, Pollution Control Revenue Bonds, Southwestern Electric Power Company Project, Refunding Series 2010, 1.600%, 1/01/19	No Opt. Call	A-	$240,022
445	Jefferson Parish Hospital Service District 2, Louisiana, Hospital Revenue Bonds, East Jefferson General Hospital, Refunding Series 2011, 6.375%, 7/01/41	7/21 at 100.00	BB	489,050
	Louisiana Citizens Property Insurance Corporation, Assessment Revenue Bonds, Series 2006-C1:
175	5.875%, 6/01/23 (Pre-refunded 6/01/18)	6/18 at 100.00	AA (5)	182,976
10	6.000%, 6/01/24 (Pre-refunded 6/01/18)	6/18 at 100.00	AA (5)	10,467
1,000	Louisiana Local Government Environmental Facilities and Community Development Authority, Revenue Bonds, Woman's Hospital Foundation Project, Refunding Series 2017A, 3.250%, 10/01/32	10/27 at 100.00	A	978,730
150	Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Refunding Series 2016, 5.000%, 5/15/29	5/26 at 100.00	A3	174,414
100	Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Refunding Series 2017, 5.000%, 5/15/30	5/27 at 100.00	A3	116,506
	Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Series 2015:
525	5.000%, 5/15/22	No Opt. Call	A3	603,745
335	5.000%, 5/15/24	No Opt. Call	A3	397,960
110	New Orleans, Louisiana, General Obligation Bonds, Refunding Series 2015, 5.000%, 12/01/25	No Opt. Call	AA-	132,535
100	New Orleans, Louisiana, Sewerage Service Revenue Bonds, Series 2015, 5.000%, 6/01/32	6/25 at 100.00	A	114,914
590	Saint Charles Parish, Louisiana, Gulf Opportunity Zone Revenue Bonds, Valero Project, Series 2010, 4.000%, 12/01/40 (Mandatory Put 6/01/22)	No Opt. Call	BBB	623,990
3,780	Total Louisiana			4,065,309
	Maine – 0.0%
35	Portland, Maine, General Airport Revenue Bonds, Refunding Series 2013, 5.000%, 7/01/22	No Opt. Call	BBB+	40,218
	Maryland – 0.3%
335	Baltimore, Maryland, Convention Center Hotel Revenue Bonds, Refunding Series 2017, 5.000%, 9/01/30	9/27 at 100.00	BBB-	386,664
	Massachusetts – 1.1%
200	Massachusetts Development Finance Agency Revenue Bonds, Lawrence General Hospital Issue, Series 2014A, 5.000%, 7/01/27	7/24 at 100.00	BBB-	219,208
500	Massachusetts Development Finance Agency, Revenue Bonds, Orchard Cove, Series 2007, 5.000%, 10/01/19	10/17 at 100.00	N/R	502,670
	Massachusetts Port Authority, Special Facilities Revenue Bonds, Delta Air Lines Inc., Series 2001A:
100	5.200%, 1/01/20 – AMBAC Insured (Alternative Minimum Tax)	9/17 at 100.00	N/R	100,378
470	5.000%, 1/01/27 – AMBAC Insured (Alternative Minimum Tax)	7/17 at 100.00	N/R	474,540
70	Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Series 2007A, 5.000%, 8/15/20 (Pre-refunded 8/15/17) – AMBAC Insured	8/17 at 100.00	AA+ (5)	70,370
1,340	Total Massachusetts			1,367,166

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Michigan – 1.1%
$ 400	Detroit Downtown Development Authority, Michigan, Tax Increment Refunding Bonds, Development Area 1 Projects, Series 1996B, 0.000%, 7/01/23	No Opt. Call	BB	$296,512
150	Detroit, Michigan, Senior Lien Sewerage Disposal System Revenue Bonds, Series 2001B, 5.500%, 7/01/29 – FGIC Insured	No Opt. Call	A	181,413
150	Michigan Finance Authority, Local Government Loan Program Revenue Bonds, Detroit Water & Sewerage Department Sewage Disposal System Local Project, Second Lien Series 2015C, 5.000%, 7/01/34	7/25 at 100.00	A-	165,366
705	Wayne County Airport Authority, Michigan, Revenue Bonds, Detroit Metropolitan Wayne County Airport, Refunding Series 2015F, 5.000%, 12/01/33 (Alternative Minimum Tax)	12/25 at 100.00	A	798,553
1,405	Total Michigan			1,441,844
	Missouri – 1.2%
100	Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, Saint Louis College of Pharmacy, Series 2013, 5.250%, 5/01/33	5/23 at 100.00	BBB+	109,769
30	Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, Saint Louis College of Pharmacy, Series 2015B, 4.000%, 5/01/32	11/23 at 100.00	BBB+	30,537
1,070	Saint Louis, Missouri, Airport Revenue Bonds, Lambert-St. Louis International Airport, Series 2005, 5.500%, 7/01/19 – NPFG Insured	No Opt. Call	A	1,155,899
185	St. Louis County, Missouri, GNMA Collateralized Mortgage Revenue Bonds, Series 1989A, 8.125%, 8/01/20 (Pre-refunded 7/01/20) (Alternative Minimum Tax)	7/20 at 100.00	AA+ (5)	202,146
1,385	Total Missouri			1,498,351
	Montana – 0.3%
260	Billings, Montana, Tax Increment Urban Renewal Revenue Bonds, Expanded North 27th Street, Series 2013A, 5.000%, 7/01/33	1/23 at 100.00	N/R	271,859
110	University of Montana, Revenue Bonds, Series 1996D, 5.375%, 5/15/19 – NPFG Insured (ETM)	No Opt. Call	A (5)	115,820
370	Total Montana			387,679
	Nebraska – 0.1%
100	Douglas County School District 10 Elkhorn, Nebraska, General Obligation Bonds, Public Schools Series 2012, 4.000%, 6/15/23	6/22 at 100.00	AA-	110,993
	Nevada – 2.3%
1,470	Clark County, Nevada, Airport Revenue Bonds, Subordinate Lien Series 2010B, 5.750%, 7/01/42	1/20 at 100.00	Aa3	1,633,655
250	Las Vegas Redevelopment Agency, Nevada, Tax Increment Revenue Bonds, Series 2009A, 8.000%, 6/15/30 (Pre-refunded 6/15/19)	6/19 at 100.00	BBB+ (5)	283,092
50	Las Vegas, Nevada, Local Improvement Bonds, Special Improvement District 607 Providence, Refunding Series 2013, 5.000%, 6/01/22	No Opt. Call	N/R	53,609
175	Washoe County, Nevada, Gas and Water Facilities Revenue Bonds, Sierra Pacific Power Company, Refunding Series 2016B, 3.000%, 3/01/36 (Mandatory Put 6/01/22)	No Opt. Call	A+	184,000
775	Washoe County, Nevada, General Obligation Bonds, Reno-Sparks Convention & Visitors Authority, Refunding Series 2011, 5.000%, 7/01/23	7/21 at 100.00	AA	880,648
2,720	Total Nevada			3,035,004
	New Hampshire – 0.1%
105	Business Finance Authority of the State of New Hampshire, Water Facility Revenue Bonds, Pennichuck Water Works, Inc. Project ,Series 2015A, 4.250%, 1/01/36 (Alternative Minimum Tax)	1/26 at 100.00	A+	108,174

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	New Jersey – 7.7%
$ 500	Camden County Improvement Authority, New Jersey, Health Care Redevelopment Revenue Bonds, Cooper Health System Obligated Group Issue, Refunding Series 2014A, 5.000%, 2/15/30	2/24 at 100.00	BBB+	$555,420
300	Gloucester County Pollution Control Financing Authority, New Jersey, Pollution Control Revenue Bonds, Logan Project, Refunding Series 2014A, 5.000%, 12/01/24 (Alternative Minimum Tax)	No Opt. Call	BBB-	328,803
	New Jersey Economic Development Authority, Cigarette Tax Revenue Refunding Bonds, Series 2012:
150	4.000%, 6/15/19	No Opt. Call	BBB+	154,754
280	5.000%, 6/15/20	No Opt. Call	BBB+	299,536
150	5.000%, 6/15/21	No Opt. Call	BBB+	163,188
335	5.000%, 6/15/22	No Opt. Call	BBB+	369,475
375	5.000%, 6/15/23	6/22 at 100.00	BBB+	410,842
210	5.000%, 6/15/24	6/22 at 100.00	BBB+	228,965
510	5.000%, 6/15/25	6/22 at 100.00	BBB+	552,906
150	5.000%, 6/15/26	6/22 at 100.00	BBB+	161,678
100	4.250%, 6/15/27	6/22 at 100.00	BBB+	103,311
300	5.000%, 6/15/28	6/22 at 100.00	BBB+	321,354
220	New Jersey Economic Development Authority, Private Activity Bonds, The Goethals Bridge Replacement Project, Series 2013, 5.000%, 1/01/28 (Alternative Minimum Tax)	1/24 at 100.00	BBB	243,967
1,000	New Jersey Economic Development Authority, School Facilities Construction Financing Program Bonds, Refunding Series 2015XX, 5.000%, 6/15/27	6/25 at 100.00	A-	1,055,270
	New Jersey Health Care Facilities Financing Authority, State Contract Bonds, Hospital Asset Transformation Program, Series 2008A:
40	5.250%, 10/01/38 (Pre-refunded 10/01/18)	10/18 at 100.00	N/R (5)	42,162
75	5.250%, 10/01/38	10/18 at 100.00	BBB+	76,508
1,095	New Jersey Higher Education Assistance Authority, Student Loan Revenue Bonds, Senior Lien Series 2017-1A, 3.750%, 12/01/31 (Alternative Minimum Tax)	12/26 at 100.00	Aaa	1,096,664
1,280	New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation Series 2010A, 0.000%, 12/15/33	No Opt. Call	A-	561,933
1,590	New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2010D, 5.000%, 12/15/23	No Opt. Call	A-	1,719,680
330	New Jersey Turnpike Authority, Revenue Bonds, Series 2012B, 5.000%, 1/01/19	No Opt. Call	A+	348,978
270	Salem County Pollution Control Financing Authority, New Jersey, Pollution Control Revenue Bonds, Chambers Project, Refunding Series 2014A, 5.000%, 12/01/23 (Alternative Minimum Tax)	No Opt. Call	BBB-	293,606
250	South Jersey Port Corporation, New Jersey, Marine Terminal Revenue Bonds, Refunding Series 2012Q, 3.000%, 1/01/22	No Opt. Call	Baa1	245,242
	Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series 2007-1A:
190	4.500%, 6/01/23	9/17 at 100.00	BBB+	191,123
230	4.625%, 6/01/26	9/17 at 100.00	BBB	230,582
160	4.750%, 6/01/34	9/17 at 100.00	BB-	159,203
70	5.000%, 6/01/41	9/17 at 100.00	B	69,074
10,160	Total New Jersey			9,984,224

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	New Mexico – 1.0%
$ 715	Farmington, New Mexico, Pollution Control Revenue Bonds, Southern California Edison Company - Four Corners Project, Refunding Series 2005A, 1.875%, 4/01/29 (Mandatory Put 4/01/20)	No Opt. Call	Aa3	$722,486
490	New Mexico Municipal Energy Acquisition Authority, Gas Supply Revenue Bonds, Refunding Sub-Series 2014A, 5.000%, 11/01/39 (Mandatory Put 8/01/19)	8/19 at 100.00	A1	524,021
1,205	Total New Mexico			1,246,507
	New York – 4.7%
220	Brooklyn Arena Local Development Corporation, New York, Payment in Lieu of Taxes Revenue Bonds, Barclays Center Project, Series 2009, 6.000%, 7/15/30 (Pre-refunded 1/15/20)	1/20 at 100.00	AA+ (5)	247,053
	Buffalo and Erie County Industrial Land Development Corporation, New York, Revenue Bonds, Catholic Health System, Inc. Project, Series 2015:
210	5.000%, 7/01/23	No Opt. Call	BBB+	242,773
195	5.000%, 7/01/24	No Opt. Call	BBB+	228,053
200	Dormitory Authority of the State of New York, Revenue Bonds, Orange Regional Medical Center Obligated Group, Series 2017, 144A, 5.000%, 12/01/28	6/27 at 100.00	Baa3	228,480
775	Dormitory Authority of the State of New York, State University Educational Facilities Revenue Bonds, Third General Resolution, Series 2012A, 5.000%, 5/15/25	5/22 at 100.00	AA	899,108
	Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A:
260	5.750%, 2/15/47 (Pre-refunded 2/15/21)	2/21 at 100.00	Aa3 (5)	301,387
175	5.750%, 2/15/47	2/21 at 100.00	AA-	200,935
	Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2000A:
240	0.000%, 6/01/22 – AGM Insured	No Opt. Call	AA	221,095
170	0.000%, 6/01/24 – AGM Insured	No Opt. Call	AA	147,070
835	New York State Energy Research and Development Authority, Pollution Control Revenue Bonds, New York State Electric and Gas Corporation, Series 2005A, 2.375%, 7/01/26 (Alternative Minimum Tax) (Mandatory Put 5/01/20)	No Opt. Call	A	849,638
500	New York State Thruway Authority, General Revenue Junior Indebtedness Obligations, Series 2013A, 5.000%, 5/01/19	No Opt. Call	A-	534,745
	New York Transportation Development Corporation, New York, Special Facility Revenue Refunding Bonds, Terminal One Group Association, L.P. Project, Series 2015:
60	5.000%, 1/01/22 (Alternative Minimum Tax)	No Opt. Call	A-	67,907
60	5.000%, 1/01/23 (Alternative Minimum Tax)	No Opt. Call	A-	68,796
	New York Transportation Development Corporation, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A:
240	4.000%, 7/01/31 (Alternative Minimum Tax)	7/24 at 100.00	BBB	249,437
135	4.000%, 7/01/32 (Alternative Minimum Tax)	7/24 at 100.00	BBB	139,925
175	4.000%, 7/01/33 (Alternative Minimum Tax)	7/24 at 100.00	BBB	180,898
185	5.000%, 7/01/34 (Alternative Minimum Tax)	7/24 at 100.00	BBB	203,670
260	4.000%, 7/01/35 – AGM Insured (Alternative Minimum Tax)	7/24 at 100.00	AA	268,174
85	4.000%, 7/01/41 (Alternative Minimum Tax)	7/24 at 100.00	BBB	84,610
275	5.000%, 7/01/46 (Alternative Minimum Tax)	7/24 at 100.00	BBB	299,175

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	New York (continued)
$ 400	Triborough Bridge and Tunnel Authority, New York, General Purpose Revenue Bonds, Refunding Series 2013B, 5.000%, 11/15/21	No Opt. Call	AA-	$ 465,008
5,655	Total New York			6,127,937
	North Carolina – 1.3%
1,315	North Carolina Municipal Power Agency 1, Catawba Electric Revenue Bonds, Series 2015C, 5.000%, 1/01/29	1/26 at 100.00	A	1,567,638
250	North Carolina Turnpike Authority, Monroe Expressway Toll Revenue Bonds, Capital Appreciation Series 2017C, 0.000%, 7/01/27	7/26 at 96.08	BBB-	176,225
1,565	Total North Carolina			1,743,863
	North Dakota – 0.7%
	Burleigh County, North Dakota, Health Care Revenue Bonds, Saint Alexius Medical Center Project, Series 2014A:
200	5.000%, 7/01/29 (Pre-refunded 7/01/21)	7/21 at 100.00	N/R (5)	228,604
650	5.000%, 7/01/31 (Pre-refunded 7/01/21)	7/21 at 100.00	N/R (5)	742,963
850	Total North Dakota			971,567
	Ohio – 5.1%
	Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Senior Lien, Series 2007A-2:
1,835	5.125%, 6/01/24	9/17 at 100.00	B-	1,776,904
100	5.375%, 6/01/24	9/17 at 100.00	B-	97,091
725	5.875%, 6/01/30	9/17 at 100.00	B-	715,358
100	5.750%, 6/01/34	9/17 at 100.00	B-	97,257
480	Fairfield County, Ohio, Hospital Facilities Revenue Bonds, Fairfield Medical Center Project, Series 2013, 5.000%, 6/15/43	6/23 at 100.00	Baa2	509,395
	Lake County, Ohio, Hospital Facilities Revenue Bonds, Lake Hospital System, Inc., Refunding Series 2008C:
225	5.500%, 8/15/24 (Pre-refunded 8/15/18)	8/18 at 100.00	N/R (5)	236,257
50	5.500%, 8/15/24	8/18 at 100.00	A3	52,301
	New Albany Community Authority, Ohio, Community Facilities Revenue Refunding Bonds, Series 2012C:
25	4.000%, 10/01/18	No Opt. Call	Aa3	25,764
30	4.000%, 10/01/19	No Opt. Call	Aa3	31,538
40	4.000%, 10/01/20	No Opt. Call	Aa3	42,721
45	5.000%, 10/01/21	No Opt. Call	Aa3	50,505
35	5.000%, 10/01/22	No Opt. Call	Aa3	39,994
10	Ohio Air Quality Development Authority, Ohio, Air Quality Development Revenue Bonds, FirstEnergy Generation Corporation Project, Series 2009A, 5.700%, 8/01/20	No Opt. Call	Caa1	4,250
175	Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Generation Corporation Project, Refunding Series 2009B, 3.100%, 3/01/23 (Mandatory Put 3/01/19)	No Opt. Call	Caa1	74,375
260	Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Generation Corporation Project, Refunding Series 2009C, 5.625%, 6/01/18	No Opt. Call	B1	257,195
425	Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Generation Project, Refunding Series 2006A, 3.750%, 12/01/23 (Mandatory Put 12/03/18)	No Opt. Call	Caa1	180,625

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Ohio (continued)
$ 90	Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Corporation Project, Refunding Series 2010A, 3.125%, 7/01/33 (Mandatory Put 7/01/18)	No Opt. Call	Caa1	$38,250
130	Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Nuclear Generation Project, Refunding Series 2006B, 3.625%, 12/01/33 (Mandatory Put 6/01/20)	No Opt. Call	Caa1	55,250
2,000	Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Projects, Junior Lien Convertible Series 2013A-3, 0.000%, 2/15/34 (4)	2/31 at 100.00	A+	1,911,240
230	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2005B, 4.000%, 1/01/34 (Mandatory Put 7/01/21)	No Opt. Call	Caa1	97,750
85	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2006A, 3.000%, 5/15/19	No Opt. Call	Caa1	36,125
105	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2006B, 4.000%, 12/01/33 (Mandatory Put 6/03/19)	No Opt. Call	Caa1	44,625
110	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2008B, 3.625%, 10/01/33 (Mandatory Put 4/01/20)	No Opt. Call	Caa1	46,750
220	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2010A, 3.750%, 7/01/33 (Mandatory Put 7/01/20)	No Opt. Call	Caa1	93,500
40	Ohio Water Development Authority, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generating Corporation Project, Series 2010C, 4.000%, 6/01/33 (Mandatory Put 6/03/19)	No Opt. Call	Caa1	17,000
100	Tuscarawas County Economic Development and Finance Alliance, Ohio, Higher Education Facilities Revenue Bonds, Ashland University, Refunding & Improvement Series 2015, 5.375%, 3/01/27	3/25 at 100.00	N/R	104,396
7,670	Total Ohio			6,636,416
	Oregon – 0.6%
1,250	Beaverton School District 48J, Washington and Multnomah Counties, Oregon, General Obligation Bonds, Deferred Interest Series 2017B, 0.000%, 6/15/31	6/27 at 85.82	AA+	764,925
	Pennsylvania – 5.5%
220	Beaver County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Refunding Bonds, FirstEnergy Nuclear Generation Project, Series 2008A, 2.700%, 4/01/35 (Mandatory Put 4/02/18)	No Opt. Call	Caa1	93,500
200	Luzerne County Industrial Development Authority, Pennsylvania, Guaranteed Lease Revenue Bonds, Series 2009, 7.750%, 12/15/27	12/19 at 100.00	N/R	208,860
500	Montgomery County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Bonds, PECO Energy Company Project, Refunding Series 1996A, 2.600%, 3/01/34 (Mandatory Put 9/01/20)	No Opt. Call	BBB	498,275
500	Montgomery County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Bonds, PECO Energy Company Project, Refunding Series 1999A, 2.500%, 10/01/30 (Mandatory Put 4/01/20)	No Opt. Call	BBB	497,550
5	Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds, Shippingport Project, First Energy Guarantor., Series 2006A, 2.550%, 11/01/41 (Mandatory Put 12/03/18)	No Opt. Call	Caa1	2,125

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Pennsylvania (continued)
$ 460	Pennsylvania Economic Development Financing Authority, Health System Revenue Bonds, Albert Einstein Healthcare, Series 2009A, 6.250%, 10/15/23 (Pre-refunded 10/15/19)	10/19 at 100.00	N/R (5)	$503,212
500	Pennsylvania Economic Development Financing Authority, Parking System Revenue Bonds, Capitol Region Parking System, Junior Guaranteed Series 2013B, 5.500%, 1/01/27	1/24 at 100.00	AA	590,170
250	Pennsylvania Economic Development Financing Authority, Parking System Revenue Bonds, Capitol Region Parking System, Junior Insured Series 2013C, 5.500%, 1/01/26 – AGM Insured	1/24 at 100.00	AA	297,398
230	Pennsylvania Economic Development Financing Authority, Private Activity Revenue Bonds, Pennsylvania Rapid Bridge Replacement Project, Series 2015, 5.000%, 12/31/25 (Alternative Minimum Tax)	No Opt. Call	BBB	270,703
115	Pennsylvania Economic Development Financing Authority, Unemployment Compensation Revenue Bonds, Series 2012B, 5.000%, 1/01/22	7/17 at 100.00	Aaa	115,412
140	Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of the Arts, Series 1999, 5.150%, 3/15/20 – AGC Insured (ETM)	9/17 at 100.00	AA (5)	148,133
	Pennsylvania Turnpike Commission, Motor License Fund-Enhanced Subordinate Special Revenue Bonds, Series 2010A:
105	5.500%, 12/01/34 (Pre-refunded 12/01/20)	12/20 at 100.00	N/R (5)	120,315
475	5.500%, 12/01/34	12/20 at 100.00	AA-	530,660
	Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Refunding Subordinate Second Series 2016B-2:
545	5.000%, 6/01/29	6/26 at 100.00	A3	640,032
580	5.000%, 6/01/35	6/26 at 100.00	A3	649,449
540	Philadelphia Gas Works, Pennsylvania, Revenue Bonds, Twelfth Series 1990B, 7.000%, 5/15/20 – NPFG Insured (ETM)	No Opt. Call	A (5)	596,122
60	Scranton-Lackawanna Health and Welfare Authority, Pennsylvania, University Revenue Bonds, Marywood University, Series 2016, 3.375%, 6/01/26	No Opt. Call	N/R	55,979
880	St. Mary Hospital Authority, Pennsylvania, Health System Revenue Bonds, Catholic Health East, Series 2009D, 6.250%, 11/15/34	5/19 at 100.00	AA-	949,986
330	Union County Hospital Authority, Pennsylvania, Hospital Revenue Bonds, Evangelical Community Hospital Project, Refunding & Improvement Series 2011, 5.750%, 8/01/21	No Opt. Call	A-	379,319
6,635	Total Pennsylvania			7,147,200
	Rhode Island – 0.2%
200	Rhode Island Health and Educational Building Corporation, Revenue Bonds, Care New England Health System, Series 2013A, 5.500%, 9/01/28 (Pre-refunded 9/01/23)	9/23 at 100.00	BBB- (5)	243,586
	South Carolina – 3.8%
	Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Refunding Series 1991:
3,040	6.750%, 1/01/19 – FGIC Insured	No Opt. Call	A3	3,280,677
1,540	6.750%, 1/01/19 – FGIC Insured (ETM)	No Opt. Call	A3 (5)	1,670,777
4,580	Total South Carolina			4,951,454

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Tennessee – 0.2%
	Knox County Health, Educational and Housing Facility Board, Tennessee, Hospital Revenue Bonds, Covenant Health, Refunding Series 2012A:
$ 105	4.000%, 1/01/22	No Opt. Call	A	$114,520
180	5.000%, 1/01/23	No Opt. Call	A	207,600
285	Total Tennessee			322,120
	Texas – 8.8%
10	Bexar Metropolitan Water District, Texas, Waterworks System Revenue Bonds, Refunding Series 2010, 5.875%, 5/01/40 (Pre-refunded 5/01/20)	5/20 at 100.00	AA (5)	11,314
	Bexar Metropolitan Water District, Texas, Waterworks System Revenue Refunding Bonds, Series 2009:
65	5.000%, 5/01/29 (Pre-refunded 5/01/19)	5/19 at 100.00	AA (5)	69,657
165	5.000%, 5/01/39 (Pre-refunded 5/01/19)	5/19 at 100.00	AA (5)	176,821
25	Brazos River Authority, Texas, Collateralized Pollution Control Revenue Bonds, Texas Utilities Electric Company, Series 2003D, 5.400%, 10/01/29 (Mandatory Put 10/01/17) (6)	10/17 at 100.00	C	—
525	Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Series 2011, 6.250%, 1/01/46 (Pre-refunded 1/01/21)	1/21 at 100.00	BBB+ (5)	614,491
1,000	Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien, Series 2015A, 5.000%, 1/01/31	7/25 at 100.00	BBB+	1,155,200
155	Harris County-Houston Sports Authority, Texas, Revenue Bonds, Refunding Second Lien Series 2014C, 5.000%, 11/15/24	No Opt. Call	A3	182,547
395	Harris County-Houston Sports Authority, Texas, Revenue Bonds, Refunding Senior Lien Series 2014A, 5.000%, 11/15/26 – AGM Insured	11/24 at 100.00	AA	472,060
35	Houston, Texas, Airport System Special Facilities Revenue Bonds, United Airlines, Inc. Terminal E Project, Refunding Series 2014, 5.000%, 7/01/29 (Alternative Minimum Tax)	7/24 at 100.00	BB-	37,684
140	Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Facilities Department, Refunding Series 2011B, 5.250%, 9/01/25	9/17 at 100.00	A2	140,483
500	Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Project, Series 2001B, 0.000%, 9/01/23 – AMBAC Insured	No Opt. Call	A2	426,555
430	Love Field Airport Modernization Corporation, Texas, General Airport Revenue Bonds Series 2015, 5.000%, 11/01/28 (Alternative Minimum Tax)	11/25 at 100.00	A1	502,666
300	Love Field Airport Modernization Corporation, Texas, Special Facilities Revenue Bonds, Southwest Airlines Company, Series 2010, 5.250%, 11/01/40	11/20 at 100.00	A3	328,608
	McCamey County Hospital District, Texas, General Obligation Bonds, Series 2013:
100	5.000%, 12/01/25	No Opt. Call	Ba2	108,688
100	5.250%, 12/01/28	12/25 at 100.00	Ba2	109,425
250	Mission Economic Development Corporation, Texas, Revenue Bonds, Natgasoline Project, Series 2016B, 144A, 5.750%, 10/01/31 (Alternative Minimum Tax)	10/18 at 103.00	BB-	262,110
	North Central Texas Health Facilities Development Corporation, Texas, Revenue Bonds, Children's Medical Center Dallas Project, Series 2012:
425	5.000%, 8/15/24	8/22 at 100.00	Aa2	494,266
380	5.000%, 8/15/25	8/22 at 100.00	Aa2	439,208
	North Texas Tollway Authority, Special Projects System Revenue Bonds, Convertible Capital Appreciation Series 2011C:
100	0.000%, 9/01/43 (4)	9/31 at 100.00	AA+	106,781
490	0.000%, 9/01/45 (4)	9/31 at 100.00	AA+	568,665

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Texas (continued)
$ 760	North Texas Tollway Authority, Special Projects System Revenue Bonds, Current Interest Series 2011D, 5.000%, 9/01/24	9/21 at 100.00	AA+	$867,867
455	North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier, Series 2014A, 5.000%, 1/01/23	No Opt. Call	A1	532,514
2,870	North Texas Tollway Authority, System Revenue Bonds, Refunding Second Tier, Series 2008F, 5.750%, 1/01/38 (Pre-refunded 1/01/18)	1/18 at 100.00	A2 (5)	2,939,970
230	Texas Municipal Gas Acquisition and Supply Corporation I, Gas Supply Revenue Bonds, Series 2006B, 1.385%, 12/15/17	9/17 at 100.00	BBB+	230,115
110	Texas Municipal Gas Acquisition and Supply Corporation III, Gas Supply Revenue Bonds, Series 2012, 5.000%, 12/15/32	12/22 at 100.00	A3	120,651
475	Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, Second Tier Refunding Series 2015C, 5.000%, 8/15/31	8/24 at 100.00	BBB+	534,223
10,490	Total Texas			11,432,569
	Virginia – 0.6%
100	Peninsula Ports Authority of Virginia, Coal Terminal Revenue Bonds, Dominion Terminal Associates Project-DETC Issue, Refunding Series 2003, 1.550%, 10/01/33 (Mandatory Put 10/01/19)	No Opt. Call	BBB+	99,559
575	Virginia Small Business Financing Authority, Senior Lien Revenue Bonds, Elizabeth River Crossing, Opco LLC Project, Series 2012, 5.500%, 1/01/42 (Alternative Minimum Tax)	7/22 at 100.00	BBB	631,816
675	Total Virginia			731,375
	Washington – 2.3%
1,000	Port of Seattle, Washington, Revenue Bonds, Intermediate Lien Series 2015C, 5.000%, 4/01/23 (Alternative Minimum Tax)	No Opt. Call	AA-	1,170,700
1,050	Washington Health Care Facilities Authority, Revenue Bonds, Fred Hutchinson Cancer Research Center, Series 2011A, 5.375%, 1/01/31	1/21 at 100.00	A	1,142,179
585	Whidbey Island Public Hospital District, Island County, Washington, General Obligation Bonds, Whidbey General Hospital, Series 2013, 5.500%, 12/01/33	12/22 at 100.00	Baa2	625,295
2,635	Total Washington			2,938,174
	West Virginia – 0.5%
125	West Virginia Economic Development Authority, Energy Revenue Bonds, Morgantown Energy Associates Project, Refunding Series 2016, 2.875%, 12/15/26 (Alternative Minimum Tax)	No Opt. Call	Baa3	121,726
250	West Virginia Economic Development Authority, Solid Waste Disposal Facilities Revenue Bonds, Appalachian Power Company - Amos Project, Series 2011A, 1.700%, 1/01/41 (Alternative Minimum Tax) (Mandatory Put 9/01/20)	No Opt. Call	A-	247,678
240	West Virginia Hospital Finance Authority, Revenue Bonds, West Virginia University Health System Obligated Group, Improvement Series 2017A, 3.375%, 6/01/29	6/27 at 100.00	A	247,896
615	Total West Virginia			617,300
	Wisconsin – 3.9%
600	Public Finance Authority of Wisconsin, Limited Obligation PILOT Revenue Bonds, American Dream @ Meadowlands Project, Series 2017, 144A, 6.500%, 12/01/37	12/27 at 100.00	N/R	623,946
350	Public Finance Authority of Wisconsin, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Refunding Series 2016A-2, 2.875%, 5/01/27 (Alternative Minimum Tax)	5/26 at 100.00	A-	348,772

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Wisconsin (continued)
	University of Wisconsin Hospitals and Clinics Authority, Revenue Bonds, Refunding Series 2013A:
$ 755	4.000%, 4/01/20	No Opt. Call	AA-	$810,470
15	5.000%, 4/01/22	No Opt. Call	AA-	17,392
325	Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Aurora Health Care, Inc., Series 2010B, 5.000%, 7/15/20	No Opt. Call	A+	356,424
675	Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Aurora Health Care, Inc., Series 2012A, 5.000%, 7/15/25	7/21 at 100.00	A+	755,892
30	Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Ministry Health Care, Inc., Refunding 2012C, 5.000%, 8/15/17 (ETM)	No Opt. Call	N/R (5)	30,160
1,500	Wisconsin Health and Educational Facilities Authority, Wisconsin, Revenue Bonds, ThedaCare Inc, Series 2015, 5.000%, 12/15/26	12/24 at 100.00	AA-	1,775,520
	Wisconsin State, General Fund Annual Appropriation Revenue Bonds, Refunding Series 2009A:
45	5.000%, 5/01/21	5/19 at 100.00	AA-	48,178
10	5.375%, 5/01/25 (Pre-refunded 5/01/19)	5/19 at 100.00	N/R (5)	10,790
30	5.375%, 5/01/25	5/19 at 100.00	AA-	32,306
5	5.625%, 5/01/28 (Pre-refunded 5/01/19)	5/19 at 100.00	N/R (5)	5,418
35	5.625%, 5/01/28	5/19 at 100.00	AA-	37,828
135	6.000%, 5/01/33 (Pre-refunded 5/01/19)	5/19 at 100.00	AA- (5)	147,197
35	6.000%, 5/01/33 (Pre-refunded 5/01/19)	5/19 at 100.00	N/R (5)	38,162
4,545	Total Wisconsin			5,038,455
$ 125,032	Total Municipal Bonds (cost $122,707,599)			128,523,909

Principal Amount (000)	Description (1)	Coupon	Maturity	Ratings (3)	Value
	CORPORATE BONDS – 0.0%
	Transportation – 0.0%
$ 17	Las Vegas Monorail Company, Senior Interest Bonds (7), (8)	5.500%	7/15/19	N/R	$10,316
4	Las Vegas Monorail Company, Senior Interest Bonds (7), (8)	5.500%	7/15/55	N/R	2,226
$ 21	Total Corporate Bonds (cost $1,751)				12,542
	Total Long-Term Investments (cost $122,709,350)				128,536,451

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	SHORT-TERM INVESTMENTS – 0.5%
	MUNICIPAL BONDS – 0.5%
	Florida – 0.3%
$ 385	Miami-Dade County School Board, Florida, Certificates of Participation, Tender Option Bond Floater 2013-005, Variable Rate Demand Obligations, 1.120%, 5/01/37 (9)	9/17 at 100.00	A-2	$ 385,000

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Illinois – 0.2%
$ 300	Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Alternative Revenue, Project Series 2015G, Variable Rate Demand Obligations, 9.000%, 3/01/32 (9)	9/17 at 100.00	B+	$ 300,144
$ 685	Total Short-Term Investments (cost $683,125)			685,144
	Total Investments (cost $123,392,475) – 99.5%			129,221,595
	Other Assets Less Liabilities – 0.5%			696,273
	Net Assets – 100%			$ 129,917,868

Fair Value Measurements

Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.

Level 1 – Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.

Level 2 – Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).

Level 3 – Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:

	Level 1	Level 2	Level 3	Total
Long-Term Investments:
Municipal Bonds	$ —	$128,523,909	$ —	$128,523,909
Corporate Bonds	—	—	12,542	12,542
Short-Term Investments:
Municipal Bonds	—	685,144	—	685,144
Total	$ —	$129,209,053	$12,542	$129,221,595

Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount and timing differences in recognizing certain gains and losses on investment transactions. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.

As of June 30, 2017, the cost of investments was $123,246,722.

Gross unrealized appreciation and gross unrealized depreciation of investments as of June 30, 2017, were as follows:

Gross unrealized:
Appreciation	$6,691,913
Depreciation	(717,040)
Net unrealized appreciation (depreciation) of investments	$5,974,873

(1)	All percentages shown in the Portfolio of Investments are based on net assets.
(2)	Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be subject to periodic principal paydowns.
(3)	For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.
(4)	Step-up coupon. The rate shown is the coupon as of the end of the reporting period.
(5)	Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities, which ensure the timely payment of principal and interest. Certain bonds backed by U.S. Government or agency securities are regarded as having an implied rating equal to the rating of such securities.
(6)	As of, or subsequent to, the end of the reporting period, this security is non-income producing. Non-income producing, in the case of a fixed-income security, generally denotes that the issuer has (1) defaulted on the payment of principal or interest, (2) is under the protection of the Federal Bankruptcy Court or (3) the Fund’s Adviser has concluded that the issue is not likely to meet its future interest payment obligations and has ceased accruing additional income on the Fund’s records.
(7)	During January 2010, Las Vegas Monorail Company (“Las Vegas Monorail”) filed for federal bankruptcy protection. During March 2012, Las Vegas Monorail emerged from federal bankruptcy with the acceptance of a reorganization plan assigned by the Federal Bankruptcy Court. Under the reorganization plan, the Fund surrendered its Las Vegas Monorail Project Revenue Bonds, First Tier, Series 2000 and in turn received two senior interest corporate bonds: the first with an annual coupon rate of 5.500% maturing on July 15, 2019 and the second with an annual coupon rate of 3.000% (5.500% after December 31, 2015) maturing on July 15, 2055. The Fund was not accruing income for either senior interest corporate bond. On January 18, 2017, the Fund's Adviser determined it was likely that this senior interest corporate bond would fulfill its obligation on the security maturing on July 15, 2019, and therefore began accruing income on the Fund's records.
(8)	Investment valued at fair value using methods determined in good faith by, or at the discretion of the Board. For fair value measurement disclosure purposes, investment classified as Level 3.
(9)	Investment has a maturity of more than one year, but has variable rate and demand features which qualify it as a short-term investment. The rate disclosed is that in effect at the end of the reporting period. This rate changes periodically based on market conditions or a specified market index.
(ETM)	Escrowed to maturity.
144A	Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.
(WI/DD)	Investment, or portion of investment, purchased on a when-issued or delayed delivery basis.

Item 2. Controls and Procedures.

The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).

There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.


(Registrant)		Nuveen Select Maturities Municipal Fund

By (Signature and Title)		/s/ Gifford R. Zimmerman
		Gifford R. Zimmerman
		Vice President and Secretary

Date: August 29, 2017

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.


By (Signature and Title)		/s/ Cedric H. Antosiewicz
		Cedric H. Antosiewicz
		Chief Administrative Officer (principal executive officer)

Date: August 29, 2017

By (Signature and Title)		/s/ Stephen D. Foy
		Stephen D. Foy
		Vice President and Controller (principal financial officer)

Date: August 29, 2017