Battery manufacturer EnerSys (NYSE: ENS) reported Q2 CY2026 results topping the market’s revenue expectations, with sales up 4.8% year on year to $935.6 million. The company expects next quarter’s revenue to be around $975 million, close to analysts’ estimates. Its non-GAAP profit of $3.66 per share was 29.5% above analysts’ consensus estimates.

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Company Overview

Supplying batteries that power equipment as big as mining rigs, EnerSys (NYSE: ENS) manufactures various kinds of batteries for a range of industries.

Revenue Growth

A company’s long-term performance is an indicator of its overall quality. Any business can have short-term success, but a top-tier one grows for years. Over the last five years, EnerSys grew its sales at a sluggish 4.2% compounded annual growth rate. 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 half-decade historical view may miss cycles, industry trends, or a company capitalizing on catalysts such as a new contract win or a successful product line. EnerSys’s annualized revenue growth of 3.7% over the last two years aligns with its five-year trend, suggesting its demand was consistently weak.

We can dig further into the company’s revenue dynamics by analyzing its number of units sold. Over the last two years, EnerSys’s units sold were flat. Because this number is lower than its revenue growth, we can see the company benefited from price increases.

This quarter, EnerSys reported modest year-on-year revenue growth of 4.8% but beat Wall Street’s estimates by 0.8%. Company management is currently guiding for a 2.5% year-on-year increase in sales next quarter.

Looking further ahead, sell-side analysts expect revenue to grow 4.6% over the next 12 months, similar to its two-year rate. This projection is underwhelming and suggests its newer products and services will not catalyze better top-line performance yet.

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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.

EnerSys has managed its cost base well over the last five years. It demonstrated solid profitability for an industrials business, producing an average operating margin of 10%. 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.

Analyzing the trend in its profitability, EnerSys’s operating margin rose by 7.3 percentage points over the last five years, as its sales growth gave it operating leverage.

In Q2, EnerSys generated an operating margin profit margin of 16.2%, up 6.5 percentage points year on year. The increase was solid, and because its operating margin rose more than its gross margin, we can infer it was more efficient with expenses such as marketing, R&D, and administrative overhead.

Earnings Per Share

Revenue trends explain a company’s historical growth, but the long-term change in earnings per share (EPS) points to the profitability of that growth — for example, a company could inflate its sales through excessive spending on advertising and promotions.

EnerSys’s EPS grew at 20.4% compounded annual growth rate over the last five years, higher than its 4.2% annualized revenue growth. This tells us the company became more profitable on a per-share basis as it expanded.

We can take a deeper look into EnerSys’s earnings quality to better understand the drivers of its performance. As we mentioned earlier, EnerSys’s operating margin expanded by 7.3 percentage points over the last five years. On top of that, its share count shrank by 13.6%. These are positive signs for shareholders because improving profitability and share buybacks turbocharge EPS growth relative to revenue growth.

Like with revenue, we analyze EPS over a more recent period because it can provide insight into an emerging theme or development for the business.

For EnerSys, its two-year annual EPS growth of 20% is similar to its five-year trend, implying strong and stable earnings power.

In Q2, EnerSys reported adjusted EPS of $3.66, up from $2.08 in the same quarter last year. This print easily cleared analysts’ estimates, and shareholders should be content with the results. Over the next 12 months, Wall Street expects EnerSys’s full-year EPS to stay about the same, moving from $12.18 to $12.25.

Key Takeaways from EnerSys’s Q2 Results

We were impressed by EnerSys’s optimistic EPS guidance for next quarter, which blew past analysts’ expectations. We were also glad its EPS outperformed Wall Street’s estimates. Zooming out, we think this was a good print with some key areas of upside. The stock traded up 14.1% to $213.00 immediately following the results.

EnerSys had an encouraging quarter, but one earnings result doesn’t necessarily make the stock a buy. Let’s see if this is a good investment. The latest quarter does matter, but not nearly as much as longer-term fundamentals and valuation, when deciding if the stock is a buy. We cover that in our actionable full research report which you can read here (it’s free).