Seagate (STX) Is Selling Into a Shortage. What Happens When It Ends?

Seagate Technology Holdings plc (NASDAQ:STX) closed at $945.57 on October 1, after a rise of more than 270% in twelve months.

Hard drives were supposed to be a dying business. Flash memory was faster, the technology was decades old, and the industry had spent years competing itself down to almost no profit at all.

Then AI arrived needing somewhere cheap to put enormous volumes of data. Nobody disputes that the demand is real. The question is what a commodity producer looks like once the squeeze it is enjoying comes to an end.

READ ALSO: Seagate (STX) Retired its 2028 Notes. Was the Cash and Share Cost Worth it?

A Commodity Business is Earning Software Margins:

The industry has spent decades competing on cost per terabyte, which is the definition of a commodity, and commodity producers do not hold margins in the mid-thirties.

What changed is demand rather than the product. AI systems generate and retain enormous volumes of data, and most of it is stored on high-capacity drives rather than on faster and far more expensive flash.

Supply did not move with it. Building drive capacity takes years, so the industry met a demand spike with the factories it already had, and prices did the adjusting.

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Every Shortage Ends the Same Way:

Shortages are self-correcting, and the correction is usually faster than the buildup.

High prices attract capacity. Producers add lines, buyers qualify second sources, and customers who stockpiled during the squeeze stop ordering while they work through what they hold.

Seagate’s own numbers show how much is riding on this continuing. The shares trade at about 17 times sales, which is a multiple normally attached to software rather than to manufacturing.

The two earnings multiples tell the story more clearly. Seagate trades at about 66 times trailing earnings and roughly 26 times what analysts forecast for next year.

That gap assumes profit keeps climbing steeply. A forward multiple of 26 on peak cycle earnings is not the bargain it appears to be, because the denominator is the part that moves.

The balance sheet offers less protection than the income statement suggests. Seagate carries $3.9 billion of debt against $1.7 billion of cash, and free cash flow of $1.94 billion is well below reported net income.

The share price has already made the bet. The stock traded as low as $209.00 within the past year and as high as $1,145.00, which is the range the market itself assigns to this question.

The Valuation Case:

Seagate closed at $945.57 on October 1, up more than 270% over twelve months while the S&P 500 rose about 14%. The growth is not sustainable. A 43.07% operating margin in a business that earned 0.8% three years ago is a price effect, not a cost advantage.

That makes the multiple misleading. The stock trades at about 26 times forward earnings against roughly 19 times for the S&P 500, so it is already dearer than the market on earnings most likely to be at a peak. If profits halve when the cycle turns, today’s price becomes 52 times earnings.

An earnings yield calculated here would be measured against peak profits, which is why it is not worth quoting. The ten-year Treasury paid 5.24% on October 1 with no cycle risk attached. This seems like a hard buy. The moment to own a cyclical is when margins sit below their own history, not at the highest level the company has ever reported.

Conclusion:

The demand is real and the margins are extraordinary, because AI systems need somewhere cheap to put their data and Seagate is one of very few companies that can supply it at scale. Nothing in the current results is manufactured. However, the highest operating margin Seagate has ever reported in a commodity industry is evidence of a shortage rather than of a moat. Capacity arrives, inventories refill, and the earnings that make a 26 times forward multiple look reasonable are the earnings most likely to fall.

Market Sentiment:

Seagate Technology Holdings plc (NASDAQ:STX) was held by 131 hedge funds with a combined stake value of about $17.6 billion at the end of Q2 2026 in the Insider Monkey database. This is up from 93 hedge fund holders with a cumulative investment value of around $6.08 billion in the previous quarter.

While we acknowledge the risk and potential of STX as an investment, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. If you are looking for an AI stock that is more promising than STX and that has 10,000% upside potential, check out our report about this cheapest AI stock.

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This article is originally published at Insider Monkey.