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Memory

The 4 companies in this industry listed on the NYSE and Nasdaq are worth $1.7 tn combined; the largest are Micron Technology (MU), SK hynix (SKHY) and EVERSPIN TECHNOLOGIES INC. (MRAM). For each one: what it does, revenue, margin, free cash flow over the last five years and a score from 0 to 10.

Data as of October 2026

Comfortable leader
4 companies value 1.7 tn revenue 276 bn margin 75.1% free cash flow 128 bn avg. score 4.0
MU holds 59.1% of the group's value, 1.4x the runner-up
Rank Ticker Company Share Value Revenue Margin FCF 5 years FCF/px Yield What it does · why it is here
1 MU Micron Technology
United States · score 7.1
59% 1.0 tn 133 bn 63.8% 59 bn 5.8% 0.1% DRAM and NAND memory for computing and data centers · The only US memory maker; a leader in HBM for AI
2 SKHY SK hynix
South Korea · score 7.5
41% 708 bn 142 bn 85.7% 69 bn 9.7% 0.2% DRAM and NAND memory, from South Korea · World's largest supplier of HBM memory for AI accelerators
3 MRAM EVERSPIN TECHNOLOGIES INC.
United States · score 1.3
0% 0.3 bn 0.1 bn -4.2% -0.0 bn -1.6% — Non-volatile magnetic MRAM memory · Arizona — revenue of $62m
4 GSIT GSI TECHNOLOGY INC
United States · score 0.0
0% 0.2 bn 0.0 bn -62.9% -0.0 bn -12.1% — Memory and computing semiconductors · California — revenue of $25m

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What this is. A catalogue, not a guide. Every industry with stocks listed on the NYSE or NASDAQ, the companies contending for its leadership, what each one does according to its own annual report, and the balance sheet it filed with the SEC.

The score runs from 0 to 10 and compares each company with every other one in the almanac on cash generation, profitability, debt, dividends and consistency over the last five years. The higher it is, the better the company fares in that comparison. Curious how much each part weighs? Ask at the bottom of the page.

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