Samsung, SK Hynix Jump 20%+ — What It Means for US Chip Stocks
Samsung Electronics and SK Hynix just posted their biggest single-day gains on record, with SK Hynix hitting a 29.95% limit-up close — its first limit-up since January 2009 — and Samsung finishing up 26.81%, both fueled by a US tech earnings blowout that's now rippling straight into American chip stocks. Photo by Sergei Starostin on Pexels What Happened On July 31, SK Hynix closed at 1,718,000 won, up nearly 30% and pinned against South Korea's daily trading limit. Samsung Electronics closed at 262,500 won, up 26.81% — its own record single-day gain. The moves helped drive the Kospi to a record 18% weekly surge, following a brutal stretch where the index had tumbled roughly 17% over the prior three trading days. The trigger came from overnight Wall Street action: the Philadelphia Semiconductor Index jumped 8.19% after blockbuster earnings from Amazon and Microsoft reignited confidence in AI infrastructure spending. US chipmakers moved in lockstep — Micron Technology gained...