Western Digital stock has logged a very large return over the past three years, yet current valuation checks still paint it as looking cheap rather than stretched. After a sharp run in 2024 and recent volatility, investors are weighing whether that combination of strong gains and an apparently supportive valuation can hold.

• Western Digital has delivered roughly 16x over the past 3 years, which puts extra focus on whether the current share price still leaves room for an attractive long term return.
• Long term storage agreements with AI customers through 2031 can support visibility on demand. At the same time, concerns around profitability and margins in the broader AI related storage space may limit how much investors are willing to pay for that growth.
• The stock screens as undervalued on most checks, with a 5 out of 6 value score, which suggests the broader valuation work leans cheap rather than expensive.

The issue now is whether Western Digital’s recent gains already reflect that stronger outlook, or if the current valuation still leaves enough margin of safety for new investors.

Is Western Digital a Bargain on Earnings?

The P/E ratio is a useful way to look at Western Digital because earnings are the main driver of how investors are valuing the stock today.

Western Digital currently trades on a P/E of about 18.9x. That sits below the broader tech industry average of 21.7x and far below the peer group average of about 45.6x. Based on the company specific fair P/E ratio of 47.1x, which reflects its risk profile and earnings outlook relative to the sector, the current multiple is at a sizeable discount.

Despite recent concerns around guidance and margins that weighed on sentiment after the latest earnings update, the market is still pricing Western Digital well under this fair P/E level. For investors who focus on earnings based valuation, that gap stands out.

On the P/E multiple, Western Digital stock currently appears undervalued compared with both its tailored fair ratio and wider tech peers.

The Western Digital Narrative: What Would Justify Today's Price?

Simply Wall St Narratives for Western Digital pick up where this valuation puzzle leaves off and spell out what kind of growth, margin profile and earnings path would need to hold for the stock to be worth materially more or materially less than today’s price. Each Narrative links Western Digital's potential catalysts and risks to a single, coherent story about the business, so you can later compare which story is tracking closest to reality.

Community views on Western Digital sit far apart, with one camp seeing a discounted AI storage leader and the other arguing the current cycle is already richly reflected in the price.

Bull case: 43% undervalued

"Tight supply-demand balance, increased duration of long-term agreements with hyperscaler customers out to mid-2026, and industry-wide removal of excess HDD capacity minimize downside risk, supporting pricing discipline and allowing Western Digital to extract premium ASPs, thereby accelerating both revenue and EPS growth above current expectations…"

Bear case: 54% overvalued

"Here is the tension, That golden hour is priced as if it lasts."

Do you think there's more to the story for Western Digital? Head over to our Community to see what others are saying!

The Bottom Line

Western Digital still screens as undervalued on earnings based checks, even after a very large move. This keeps the focus on whether the current P/E discount is justified. The key question is whether the company can sustain a margin and profitability profile that supports those earnings and reassures investors about the AI storage cycle. If that holds, the current multiple may look conservative. If not, the apparent discount could prove to be more of a value trap than an opportunity.

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.