Had You Invested $1,000 in Marvell or Micron a Decade Ago, Here’s What You’d Have Now

From Sleepy Chip Shops to AI Infrastructure Pillars

Ten years ago, Marvell Technology (NASDAQ: MRVL | MRVL Price Prediction) was a fabless chipmaker leaning on declining hard-drive controllers. Micron Technology (NASDAQ: MU) was a cyclical memory producer wrestling with DRAM oversupply. Both looked like value traps. Neither looked like a future artificial intelligence (AI) darling.

Marvell’s reset began when Matt Murphy took over as CEO in 2016 and pivoted toward data infrastructure. The $6 billion Cavium deal in 2018 and the $10 billion Inphi acquisition in 2021 reshaped Marvell into a custom silicon and optical interconnect supplier. By Q1 FY2027, data center contributed 76% of revenue, with Murphy citing “exceptional AI-related bookings.”

Micron’s turn came when Sanjay Mehrotra became CEO in 2017. High bandwidth memory turned commodity DRAM into AI plumbing. FQ2 2026 revenue hit $23.86 billion, up 196.3% year over year, with GAAP gross margin expanding to 74.4%. Mehrotra called memory “a strategic asset” in the AI era.

A Decade That Crushed the S&P 500

Thus, $1,000 invested in Marvell and Micron 10 years ago would have become $32,952 and $94,393, respectively. Holding either stock through the decade required real stomach. Marvell traded sideways for years before its AI-silicon thesis materialized, and shares were still at $74.75 just a year ago. Micron whipsawed through multiple memory busts, including the 2022–2023 trough. Most of the lifetime gains arrived in the past 12 months, with Micron up 62.3% in the past month alone. Timing absolutely mattered, but staying invested mattered more.

The Bull and Bear Case for Each Today

The bull case for Marvell rests on hyperscaler custom XPU programs continuing to expand and Celestial AI’s photonic fabric becoming a standard interconnect. The bear case centers on the 76x forward P/E already pricing in flawless execution against a customer base concentrated in a handful of cloud buyers.

The bull case for Micron rests on HBM supply staying tight into 2027 and U.S.-only manufacturing carrying policy tailwinds. The bear case is all about memory’s brutal cyclicality, since a guided 81% gross margin is almost certainly peak.

On valuation, Micron looks cheaper with an 11x forward P/E, offering some cushion if the cycle turns. Marvell’s story is cleaner, though the price reflects considerable optimism.