Seagate Rides an AI Storage Supercycle Past $965 — But Can the Hard-Drive Giant Keep Defying Gravity?

Shares of Seagate Technology surged 4.7% to $965.08 on August 14, extending a blistering rally that has added roughly 20% in just five trading sessions. The catalyst: a fiscal fourth-quarter earnings report that obliterated expectations and a forward outlook suggesting the best may still be ahead. For shareholders, the central question is whether data-center spending can sustain the torrid pace now baked into the stock.

• Revenue and Profit Blew Past the Street's Numbers — And the Gap Was Wide. Seagate posted fiscal Q4 revenue of $3.63 billion, surging 49% year-over-year and comfortably beating the FactSet consensus of $3.5 billion.

Adjusted EPS hit $5.71, crushing the $5.10 analyst estimate and more than doubling the year-ago figure.

Non-GAAP gross margin climbed to 52.7%, up from 37.9% a year ago — meaning Seagate is keeping far more of every dollar it earns, a direct benefit of selling pricier, higher-capacity drives to cloud giants.

• Nearly All Storage Is Going to Data Centers — And They're Locked In Through 2028. Data-center demand represented about 90% of exabyte shipments, with most capacity allocated through calendar 2028 via long-term supply agreements. That kind of contract visibility is rare in the historically boom-and-bust hard-drive industry, and it gives Seagate unusual confidence to plan production without fear of sudden demand drops.

• A New Recording Technology Is Finally Paying Off. Seagate's heat-assisted magnetic recording platform now accounts for 40% of data-center storage shipments — a milestone that lets the company pack more data onto each drive while charging premium prices. Management expects to hit 50% by end of calendar 2026 , which should keep margins expanding.

• The Guidance Implies Acceleration, Not a Plateau. For the September quarter, Seagate guided revenue to $4.1 billion and EPS of $7.30 — both substantially above prevailing Street estimates.

Management expects fiscal 2027 revenue growth to outpace fiscal 2026. That's a bold claim for a company already posting record cash flow. The real investor debate is whether the stock price now assumes too many quarters like this one.

Every storage cycle eventually invites supply response, customer pushback, or valuation exhaustion — and at nearly $1,000 a share, the margin for disappointment is thin.