KOSPI Recovers to +0.68% as Individual Buying Offsets Semiconductor Drag; Nasdaq Eyes Nvidia

The Quick Take

• KOSPI closed up 0.68% at 6,742.74 and KOSDAQ gained 1.70% to 827.15, recovering from a 2%-plus intraday decline driven by semiconductor weakness overnight
• US majors Nvidia (-2.91%), TSMC (-2.11%), Broadcom (-2.63%), and Micron (-5.83%) fell overnight, pulling Korean semiconductor-linked stocks lower at open
• Nasdaq opened higher on Aug 25 (+0.73% at 26,169) as traders positioned ahead of Nvidia's quarterly results expected after Aug 26 close
• Individual and institutional buying in Korean markets absorbed the morning semiconductor selloff, with retail investor buying often proving a contrarian signal near short-term bottoms

The KOSPI's intraday recovery from a 2% gap-down open to a 0.68% close illustrates the resilience of Korean retail investor demand as a stabilising market force. The morning weakness was entirely imported from overnight US semiconductor selloff—Nvidia's 2.91% decline ahead of its earnings, Micron's sharp 5.83% drop, and TSMC's 2.11% fall reflected investors trimming positions ahead of the Nvidia quarterly result that markets have designated as the most watched corporate earnings event of the current AI cycle. Korean institutional and retail buyers interpreted the pullback as a buying opportunity in the world's second-largest memory chip market.

Nvidia's post-close results on August 26 represent the definitive near-term catalyst for global semiconductor valuations. Korean memory makers Samsung Electronics and SK Hynix have direct revenue exposure through HBM3E supply agreements with Nvidia—strong AI server demand guidance from Nvidia directly translates into memory volume and pricing visibility for Korean producers. The KOSDAQ's stronger recovery (+1.70%) versus KOSPI reflects disproportionate smaller-cap semiconductor equipment and materials exposure in the junior index, suggesting more speculative positioning ahead of the Nvidia catalyst.

The forward signal most critical for Korean semiconductor investors is whether Nvidia's Q2 2026 guidance implies continued HBM demand acceleration that sustains Samsung and SK Hynix's premium memory pricing cycle. Watch US and Korean consumer confidence data for signs that smartphone cycle recovery is adding a second demand driver beyond AI servers. TSMC's capacity utilisation update on the earnings call will indicate whether the AI-driven capex supercycle is concentrated in data centre or beginning to broaden into automotive and consumer electronics.

Synthesized from 3 sources.