Why EnerSys is back in focus after its latest growth update

EnerSys (ENS) has drawn fresh attention after outlining plans to expand in data centers and defense, including reallocating manufacturing capacity and steering its Greenville lithium facility toward drones and soldier power systems.

The recent communications on AI infrastructure and defense electrification sit alongside very strong momentum, with a 30 day share price return of 20.45%, a year to date share price return of 58.98%, and a 1 year total shareholder return of 142.53%. This suggests sentiment has shifted firmly in EnerSys' favor.

If this kind of AI infrastructure and power story interests you, it could be worth widening your search using the 39 AI infrastructure stocks.

With EnerSys trading at US$239.63, above both sell side targets and one intrinsic value estimate, the key question is whether the strong AI and defense story still leaves upside on the table, or if markets are already banking on years of future growth.

Most Popular Narrative: 19.9% Overvalued

EnerSys closed at $239.63 against a narrative fair value of $199.89, so the widely followed view prices in a premium that investors should understand.

Major cost-reduction initiatives, including a strategic realignment and transition to Centers of Excellence (CoEs), are expected to generate $80 million in annualized savings starting in fiscal 2026, structurally expanding net and operating margins.

EnerSys is embedding IoT and predictive analytics capabilities into its products, enabling cross-selling of higher-value services and energy management solutions, which should expand the addressable market and support both top-line growth and margin improvement over time.

Curious how steady revenue assumptions, rising margins, a richer future earnings multiple and ongoing buybacks all come together in one valuation story? The narrative blends moderate top line growth, a clear profit uplift and a reset in the P/E investors might accept a few years from now. Want to see which of those ingredients really drives that $199.89 figure?

Result: Fair Value of $199.89 (OVERVALUED)

However, there are still pressure points to watch, including ongoing tariff uncertainty affecting Motive Power customers and the pause on the planned lithium cell factory, which could challenge the current narrative.

Another angle on value: earnings multiples tell a different story

The SWS DCF model and analyst fair value point to EnerSys trading rich against future cash flows, yet its P/E of 28.2x sits below both the Electrical industry at 37.2x and an estimated fair ratio of 31.6x. This suggests investors are not paying a stretch multiple for current earnings. With the stock also priced below peer averages of 78x, the central valuation question is whether the greater risk lies in the narrative forecasts or in how long the market continues to reward this premium story.

Next Steps

With all this optimism around AI, defense and valuation signals, it helps to pressure test the story yourself and move quickly while sentiment is hot. To weigh up the potential upside against the risks that others are watching, start by reviewing the 3 key rewards.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.