Seagate Technology Holdings (STX) On Toshiba Capacity Plans Is This AI Storage Story Fully Valued

Toshiba’s plan to almost double hard disk drive capacity by 2027 has put Seagate Technology Holdings (STX) under a brighter spotlight, as investors reassess pricing power, profitability, and future cash generation.

Seagate Technology Holdings has seen its 1-day share price return of 1.06% arrive after a 7-day share price decline of 7.77% and a 90-day slide of 9.02%, even as year-to-date share price performance is up 172.31%, with a 1-year total shareholder return of 267.39% and a very large 3-year total shareholder return above 10x. This suggests powerful long-term momentum, while recent pullbacks may reflect renewed debate over growth prospects and risk around valuation as HDD capacity plans and AI storage demand stay in focus.

Scan beyond Seagate Technology Holdings and compare it with a curated group of storage and AI infrastructure peers by assessing 92 AI infrastructure stocks as it builds the backbone for data center demand.

After a huge multiyear run and a sharper pullback, Seagate Technology Holdings now trades at levels where the story splits. Do current expectations still leave enough upside potential to justify the risk buyers take from here?

Most Popular Narrative: 32% Undervalued

On Simply Wall St, the most followed narrative values Seagate Technology Holdings at $1,158.73 per share, compared with a last close of $783. That gap frames a thesis that leans heavily on tight HDD supply and Seagate’s progress with HAMR technology rather than just short term sentiment after Toshiba’s capacity push.

The arithmetic of that shows up in the supply gap. Nearline HDD supply is expected to fall roughly 300 exabytes short of demand in 2026, a 10 to 15% shortfall, widening to something like 400 exabytes in both 2027 and 2028. Blended nearline pricing has been running near $14.30 to $14.90 per terabyte against scenarios that put it meaningfully higher over the next two years.

See why 6 investors see Seagate Technology Holdings as 32% undervalued.

Result: Fair Value of $1,158.73 (UNDERVALUED)

Still, the Seagate Technology Holdings story could unravel quickly if Western Digital closes the HAMR gap faster than expected or if either supplier starts adding aggressive new capacity.

Find out about the key risks to this Seagate Technology Holdings narrative.

Another View: Seagate’s Rich P/E Tag

The user-led fair value story paints Seagate Technology Holdings as 32% undervalued at $1,158.73, yet the market is already paying a P/E of 55.9x. That is more than double peers on 26.4x and well above the global tech average of 19.4x, even though the fair ratio sits at 56.9x. Is this a genuine margin of safety, or is the room for error simply smaller than the narrative suggests?

See what the numbers say about this price in our valuation breakdown, then weigh it against your own risk tolerance and time horizon: See what the numbers say about this price — find out in our valuation breakdown.

Next Steps

If the mixed tone on Seagate Technology Holdings leaves you torn, move quickly from opinion to evidence and shape your own stance using the 3 key rewards and 3 important warning signs.

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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.

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