Had You Invested $1,000 in Micron or Western Digital 10 Years Ago, Here’s How Much You’d Have Today

15 hours ago 2

Joel South

Tue, March 31, 2026 astatine 12:31 PM CDT 3 min read

A $1,000 concern successful Micron Technology (MU) a decennary agone would beryllium worthy astir $29,919 today—nearly 10x the S&P 500’s return—though it required white-knuckling done brutal drawdowns, and Western Digital (WDC) crushed it with a staggering 522% one-year instrumentality driven by the Sandisk spinoff and AI-fueled HDD demand
Micron has transformed from a volatile representation commodity play into AI infrastructure’s captious gatekeeper—as the lone U.S.-based shaper of high-bandwidth representation with 56% gross margins and astir doubled unreality revenue—but Western Digital’s cleaner caller way comes with a hefty 27x guardant P/E that prices successful flawless execution
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Micron Technology (NASDAQ:MU) and Western Digital (NASDAQ:WDC) person spent a decennary riding 1 of the astir volatile cycles successful technology. Both beryllium astatine the intersection of representation and storage, and some person been rewired by the AI buildout. The returns bespeak it.

Micron spent years trapped successful the boom-bust bushed of DRAM and NAND pricing. When representation oversupply hit, net collapsed; erstwhile request recovered, they exploded. AI changed the ceiling. High-bandwidth representation became captious infrastructure for AI accelerators, and Micron is the lone U.S.-based shaper of it. Cloud Memory gross astir doubled to $5.28B successful Q1 FY26, with gross margins of 56%. That is simply a structurally antithetic concern than 5 years ago.

Western Digital's communicative is messier. It straddled hard disk drives and flash retention for years, past completed the spinoff of its Sandisk flash part connected February 21, 2025. What remains is simply a pure-play HDD institution with unreality gross representing 87% of its mix, driven by hyperscaler request for high-capacity drives successful AI information centers. Gross margins expanded from astir 30% to 46.1% successful Q2 FY26.

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An infographic titled 'If You Invested $1,000...' comparing Micron (MU) and Western Digital (WDC) implicit a 10-year travel successful representation and storage. It is divided into 3 main sections. The archetypal section, 'Two Very Different Paths,' highlights institution specifics for Micron Technology (MU) including being an AI Supercycle Driver and the lone U.S. HBM Manufacturer, with unreality representation gross astir doubled to $5.28B (Q1 FY26) and 56% gross margins. For Western Digital (WDC), it notes its pure-play HDD absorption post-SanDisk spinoff (Feb '25), 87% unreality conception revenue, and 46.1% gross borderline enlargement (Q2 FY26), some influenced by an AI-Driven Demand Cycle. The 2nd section, 'The Numbers: $1,000 Investment Growth,' shows returns implicit 1, 5, and 10 years. For 1-year, MU grew to $3,652 (+265%), WDC to $6,222 (+522%), and S&P 500 to $1,137 (+14%). For 5-year, MU grew to $3,741 (+274%), WDC to $5,009 (+401%), and S&P 500 to $1,595 (+59%). A ample enactment illustration displays 10-year returns from an archetypal $1,000 since April 2016: Micron reached $29,919 (+2,892%), Western Digital reached $8,214 (+721%), and the S&P 500 reached $3,054 (+205%). Micron's 10-year instrumentality is labeled 'EXTRAORDINARY: Nearly 10x S&P 500 Return.' The last section, 'The Verdict: Micron is the Cleaner Bet,' lists Micron's attributes arsenic an AI Infrastructure Play with an expert people of $527.60 (vs. existent $329.89) and a guardant P/E of ~8x (reasonable valuation). Western Digital's points see conditional reliance connected borderline and pricing, a guardant P/E of ~27x (prices successful execution), and dividend past caution (cut from $0.50 to $0.10, past $0.125). A concluding connection reads: 'Micron offers a cleaner stake connected AI representation infrastructure astatine a much tenable valuation.' All information is arsenic of March 31, 2026.

Micron's 10-year fig is extraordinary. A $1,000 concern astatine $10.76 per stock successful April 2016 would beryllium worthy astir $29,919 today, astir 10x the S&P 500's instrumentality implicit the aforesaid window, though the thrust required holding done brutal drawdowns including a near-halving during the 2022 representation glut. Western Digital's one-year surge of 522% is the standout short-term number, driven astir wholly by the Sandisk separation and AI request lifting HDD valuations.

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