Memory Chip Giants Micron, SK Hynix and Samsung Hit Trillion‑Dollar Valuations

Micron Technology reported a Q3 2026 revenue of $41.456 billion, up 345 % year‑over‑year, and net profit of $28.86 billion, a 1,398 % increase. The company’s market value surpassed $1.4 trillion, briefly overtaking Meta and Tesla.

Together with South Korea’s SK Hynix and Samsung Electronics, the three firms now control more than 90 % of the server‑grade DRAM market and have all entered the trillion‑dollar market‑cap club. Their combined revenue and profit growth in 2025‑2026 has been driven by soaring demand for AI‑related compute, leading to higher prices, supply constraints and a coordinated antitrust lawsuit in the United States accusing the trio of colluding to limit DRAM supply and inflate prices.

Both SK Hynix and Samsung announced massive capital‑expenditure plans: SK Hynix will invest 400 trillion won in new wafer fabs and HBM lines in South Korea’s southwest region, while Samsung disclosed a ten‑year, roughly 1 quadrillion‑won investment programme. Micron is expanding its manufacturing footprint in New York State and Idaho. The rapid financial expansion underscores the strategic importance of DRAM and NAND flash technologies in the global AI and computing ecosystem.