Filtration products manufacturer Atmus Filtration Technologies (NYSE: ATMU) beat Wall Street’s revenue expectations in Q1 CY2026, with sales up 14.6% year on year to $477.5 million. Its non-GAAP profit of $0.69 per share was 3.6% above analysts’ consensus estimates.
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Atmus Filtration Technologies (ATMU) Q1 CY2026 Highlights:
- Revenue: $477.5 million vs analyst estimates of $469.8 million (14.6% year-on-year growth, 1.6% beat)
- Adjusted EPS: $0.69 vs analyst estimates of $0.67 (3.6% beat)
- Adjusted EBITDA: $94.5 million vs analyst estimates of $94.72 million (19.8% margin, in line)
- Operating Margin: 16%, in line with the same quarter last year
- Free Cash Flow Margin: 5.3%, up from 3.9% in the same quarter last year
- Market Capitalization: $5.18 billion
“The Atmus team delivered strong financial results while simultaneously integrating Koch Filter to unlock growth for our Industrial Solutions business segment,” said Steph Disher, Chief Executive Officer of Atmus.
Company Overview
Spun out of Cummins in 2023 after 65 years as part of the engine maker, Atmus Filtration Technologies (NYSE: ATMU) manufactures filters for trucks, construction equipment, and agriculture machinery to reduce emissions and protect engines.
Revenue Growth
A company’s long-term performance is an indicator of its overall quality. Any business can put up a good quarter or two, but the best consistently grow over the long haul. Regrettably, Atmus Filtration Technologies’s sales grew at a tepid 6% compounded annual growth rate over the last four years. This fell short of our benchmark for the industrials sector and is a rough starting point for our analysis.
We at StockStory place the most emphasis on long-term growth, but within industrials, a stretched historical view may miss cycles, industry trends, or a company capitalizing on catalysts such as a new contract win or a successful product line. Atmus Filtration Technologies’s annualized revenue growth of 5.6% over the last two years aligns with its four-year trend, suggesting its demand was consistently weak. 
This quarter, Atmus Filtration Technologies reported year-on-year revenue growth of 14.6%, and its $477.5 million of revenue exceeded Wall Street’s estimates by 1.6%.
Looking ahead, sell-side analysts expect revenue to grow 10.6% over the next 12 months, an improvement versus the last two years. This projection is healthy and suggests its newer products and services will spur better top-line performance.
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Operating Margin
Operating margin is an important measure of profitability as it shows the portion of revenue left after accounting for all core expenses – everything from the cost of goods sold to advertising and wages. It’s also useful for comparing profitability across companies with different levels of debt and tax rates because it excludes interest and taxes.
Atmus Filtration Technologies has been an efficient company over the last five years. It was one of the more profitable businesses in the industrials sector, boasting an average operating margin of 15.1%. This result was particularly impressive because of its low gross margin, which is mostly a factor of what it sells and takes huge shifts to move meaningfully. Companies have more control over their operating margins, and it’s a show of well-managed operations if they’re high when gross margins are low.
Looking at the trend in its profitability, Atmus Filtration Technologies’s operating margin rose by 4.1 percentage points over the last five years, as its sales growth gave it operating leverage.
This quarter, Atmus Filtration Technologies generated an operating margin profit margin of 16%, in line with the same quarter last year. This indicates the company’s cost structure has recently been stable.
Cash Is King
If you’ve followed StockStory for a while, you know we emphasize free cash flow. Why, you ask? We believe that in the end, cash is king, and you can’t use accounting profits to pay the bills.
Atmus Filtration Technologies has shown decent cash profitability, giving it some flexibility to reinvest or return capital to investors. The company’s free cash flow margin averaged 7.7% over the last five years, slightly better than the broader industrials sector.
Atmus Filtration Technologies’s free cash flow clocked in at $25.5 million in Q1, equivalent to a 5.3% margin. This result was good as its margin was 1.4 percentage points higher than in the same quarter last year, but we wouldn’t read too much into the short term because investment needs can be seasonal, causing temporary swings. Long-term trends carry greater meaning.
Key Takeaways from Atmus Filtration Technologies’s Q1 Results
It was encouraging to see Atmus Filtration Technologies beat analysts’ revenue expectations this quarter. We were also glad its EPS outperformed Wall Street’s estimates. Overall, this was a decent quarter. The stock remained flat at $63.40 immediately after reporting.
The latest quarter from Atmus Filtration Technologies’s wasn’t that good. One earnings report doesn’t define a company’s quality, though, so let’s explore whether the stock is a buy at the current price. When making that decision, it’s important to consider its valuation, business qualities, as well as what has happened in the latest quarter. We cover that in our actionable full research report which you can read here (it’s free).
