SK hynix shares tumble as Chinese DRAM rival CXMT claims breakthrough and ASML announces price hikes

On October 16, 2026 SK hynix Inc. (SKHY) saw its stock slide sharply after reports that China’s CXMT achieved a DRAM technology breakthrough and is set to launch a new 4F2 data‑center chip by year‑end. Traders also reacted to news that ASML will raise EUV/DUV spare‑parts prices by about 10% starting in 2027, which could lift SK hynix’s operating costs. The combined competitive and cost pressures pushed the share price down to roughly $146.11.

The company warned that tighter pricing power from CXMT’s entry and higher equipment costs could compress margins, which may affect future earnings (Timothy Sykes’s note says). Investors should monitor margin trends and any confirmation of CXMT’s technology claims.

  • 1SK hynix reported revenue near ₩97.1T.
  • 2The stock trades at a price‑to‑earnings ratio of about 3.76.
  • 3SK hynix’s share price was $146.11 on 2026/10/15.
  • 4CXMT announced a DRAM technology breakthrough and a new 4F2 data‑center chip expected by year‑end.
  • 5ASML plans to raise EUV/DUV replacement‑parts prices by roughly 10% for South Korea starting in 2027.
  • Material 1 says the stock fell 2.79% on the day, while material 2 says it fell 2.99% (same basis).
  • Return on invested capital is reported as above 70% in material 1 and 73.54% in material 2 (same basis).

Sources