SKHX Falls 9.40% as the 'Meta Shock' Sinks SK Hynix 14.57% in Seoul

The Meta Shock

This wasn't the Broadcom guide that dented Korean chips earlier in the day — a sharper, more specific catalyst took over. Meta's decision to open a cloud-compute leasing business using its surplus computing capacity landed as an AI demand warning rather than a growth story. The read across the market: if the largest buyers of accelerators are now renting spare capacity back out, some of today's AI capex may be running ahead of near-term demand — and that pressures the entire memory supply chain.

Seoul took it on the chin. SK Hynix closed down 14.57% at 2,187,000 won while Samsung Electronics fell 9.06% and SK Square, SK Hynix's largest shareholder, dropped 13.2%. The KOSPI plunged 7.89% to 7,648.09, one of its worst sessions in years, with foreign investors net-selling 5.15 trillion won. The move tracked an overnight U.S. rout in which Micron and SanDisk each closed down 10%, confirming this was a memory-wide repricing, not a single-name story.

Why the Perp Only Fell Half as Far

SKHX's 9.40% slide to about $1,444 looks tame next to the 14.57% crater in the underlying Seoul stock — and the gap is structural, not a mispricing. The perp's move is measured over a trailing 23-hour window that still includes higher pre-shock prints, and it trades around the clock, so it spreads the adjustment out instead of taking the full hit in one closing auction the way the cash market did.

FX added a small cushion. Because the oracle converts SK Hynix's KRW price to USD, a weaker won softens the dollar-denominated drop, and the won slipped about 0.22% to roughly 1,544 per dollar on the session — a minor offset, not the main story. Traders leaned into the dislocation: this HIP-3 market turned over $674.9 million in 24h volume, heavy for a synthetic single-stock perp and a sign the smoothing gap itself became the trade.

The Bull Case and the ADR Overhang

The sell-side didn't blink. Even into the rout, brokerages raised SK Hynix target prices to 4.0 and 4.1 million won, well above the 2,187,000-won close, framing the drawdown as profit-taking after a monster 2026 run rather than a break in the HBM thesis. The credible bear counter is supply, not demand: a Daishin Securities analyst flagged that expansion by Chinese memory makers could ease bottlenecks and slow price increases — the one variable that would actually invalidate the up-cycle.

The timing is the sharpest edge. SK Hynix's record $29 billion Nasdaq ADR listing — the largest ADR offering ever, topping Alibaba's $21.8 billion — is set to price around July 10, with 17.79 million new shares (about 2.5% of the company) hitting the book. Bookbuilding and institutional roadshows now run straight into a falling tape, so a deal meant to showcase the AI-memory story instead has to be sold in the middle of an AI-demand scare.