SK Hynix shares declined on October 13, 2026, after reports that supplier ASML plans to raise replacement-part prices by about 10% starting in 2027.
The increase is expected to affect ASML’s EUV and DUV lithography tools, which are critical to SK Hynix’s production of advanced memory chips.
Shares fell more than 5% during the day. Investors are reportedly factoring in higher long-term equipment and maintenance costs, which could pressure future profit margins.
The news adds to recent selling pressure after the stock pulled back from its late-September highs.