Seagate Has Already Surged 900% in 5 Years. Where Will it be In 2027?

Few large-cap tech stocks have moved like Seagate Technology (NASDAQ:STX | STX Price Prediction) over the past five years. The hard drive maker was left for dead in 2021 as investors braced for NAND to eat HDD, yet the AI data explosion flipped the narrative.

Cloud giants now depend on Seagate’s Mozaic HAMR platform to store the exabytes their AI models generate, and the stock has responded in kind. The question is whether the run has legs into 2027, or whether the easy money has already been made.

Seagate Technology trades at $832.56 after a wild year that included a 431.49% one-year gain and a 980.57% five-year return. Our 24/7 Wall St. price target for Seagate is $946.08 over the next 12 months, implying modest but real upside from here. The recommendation is buy at high confidence, with structural cloud demand and HAMR economics driving the thesis.

Momentum Cooled, but Fundamentals Accelerated #

STX slipped 5.2% over the past week and sits roughly 27% off its $1,144.18 52-week high.

Yet FY2026 delivered 34.06% revenue growth to $12.20 billion, non-GAAP EPS of $15.58, and record free cash flow of $3.11 billion. Q4 GAAP gross margin hit 52.3%, up from 37.4% a year prior. Management guided Q1 FY27 revenue to $4.1 billion and non-GAAP EPS of $7.30, signaling the ramp is accelerating.

Why Bulls See a Breakout Ahead #

CEO Dave Mosley described Seagate as entering “a period of structural growth” and lifted the annual revenue growth target to “a minimum of 20% over the next few years.” Nearline capacity is “almost fully allocated through calendar 2027,” and the top three cloud providers have nearly doubled their RPO to a staggering $1.1 trillion (the same buildout we mapped across power, cooling, and networking suppliers in a free report here: 7 Stocks Powering the AI Boom).

Mosaic 4 delivers up to 44 terabytes per drive, with Mosaic 5 targeting 50 terabytes by late 2027. A bull scenario points to $1,221, matching Morgan Stanley’s earlier $1,035 target environment.

What Could Go Wrong #

STX carries a beta of 2.102 and a trailing P/E of 71x. Hyperscaler concentration is real: 80% of revenue is data center. Dilution from the 2028 Exchangeable Senior Notes looms, though management retired $1.40 billion in debt across FY26.

A bear case takes shares to $703. The forward P/E of 28x and PEG of 0.569 suggest earnings growth is driving gains, with limited room for multiple expansion.

How Seagate Compares to Western Digital and Micron #

Western Digital (NASDAQ:WDC) is the cleanest peer, a pure-play HDD maker post-Sandisk separation. WDC posted FY26 revenue of $12.92 billion and non-GAAP EPS of $10.22, guiding Q1 FY27 to $4.1 billion in revenue and $4 EPS. Its market cap of $166.6 billion sits below Seagate’s $204.8 billion, but Seagate’s HAMR lead and higher EPS run rate justify the premium.

Micron Technology (NASDAQ:MU) offers AI memory context. Its fiscal Q3 revenue of $41.46 billion and Q4 guide of $50 billion put Seagate’s growth in perspective. Micron plays in DRAM and HBM, a different segment from storage, making it a complement rather than a substitute. The shared AI thesis makes Seagate’s Mosaic-driven margin story reasonable.

My Take: Structural Demand Anchors the Thesis #

My 24/7 Wall St. price target for Seagate is $946.08, a buy at 90% confidence. The tipping factor is nearline capacity allocated through calendar 2027, which gives the earnings ramp visibility most cyclical stocks lack.

The thesis holds for investors who can stomach a beta above 2 and view pullbacks as entry windows. It weakens if hyperscaler capex signals soften or if HAMR yields disappoint.

These projections assume Seagate executes Mosaic 4 and 5 on schedule. Significant upside or downside could come from a hyperscaler capex reset or a faster-than-expected NAND price crash.

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