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SK Hynix craters 15%; SpaceX slips under $135 IPO

By SkimNews · Summarized & edited by · 2026-07-19
SK Hynix craters 15%; SpaceX slips under $135 IPO

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SK Hynix torched its Seoul shareholders with a record 15% plunge Monday — the chipmaker's worst single-day drop in nearly two decades — just two days after its $26.5 billion Nasdaq debut looked like a coronation. The collapse dragged the Kospi down 9%, triggered a 20-minute trading halt, and pulled Samsung down with it, exposing the ugly mechanics of dual-listed AI plays: ADRs surged 13% in New York while local holders sold to chase them, and the HBM4 shipment ramp investors had priced into Q2 simply hasn't materialized. SpaceX, the other big post-IPO name of the moment, slipped below its $135 offering price Wednesday ahead of Thursday's 13th Starship test — both blockbuster listings turning into cooling pots faster than the bulls expected.

The stories behind this week

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Why it matters: SK Hynix's collapse dragged the Kospi down 9%, tripped a 20-minute circuit-breaker halt, and pulled Samsung down with it — the AI-memory trade now trades as a single correlated bet that can break Korean markets in a session.

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