On October 13, SK hynix declined 3.08% Overnight, trading at $157.31/share, with turnover of $12.6491 million.

The decline comes amid multiple negative catalysts. Foreign investor holdings in SK hynix remained at 49.59%, having stayed below the 50% threshold for eight consecutive trading days, signaling growing caution toward Korean memory giants. Additionally, ASML notified Samsung Electronics and SK hynix of a 10% across-the-board price increase on spare parts, which both companies reportedly accepted after negotiations, intensifying cost pressures across the semiconductor equipment supply chain.

Broader weakness was evident across the memory sector, with Western Digital, Micron Technology, and SanDisk all trading lower in recent US sessions, as negative sentiment from Korean markets extended into US-listed semiconductor stocks.