KOSPI Surges 2% as Samsung and SK Hynix Lead Global Tech Rally

The Quick Take

• South Korean KOSPI rose nearly 2% tracking Wall Street gains on Tuesday
• Samsung Electronics and SK Hynix led the advance on renewed AI chip demand optimism
• Korean won strengthened while government bond yields eased on improved risk appetite

Synthesized from 1 source — full coverage, sentiment breakdown, and forward signals below.

South Korean equities staged a broad recovery on Tuesday, with the KOSPI benchmark gaining nearly 2% in line with overnight Wall Street gains. The rally was led by heavyweight semiconductor names — Samsung Electronics and SK Hynix — which together command approximately 30% of the KOSPI's weighting. Investors responded to renewed global optimism around artificial intelligence hardware demand, which has underpinned memory chip pricing after a prolonged inventory correction cycle.

The currency market reflected improving risk sentiment as the Korean won strengthened against the US dollar. Domestic government bond yields eased simultaneously, a pattern consistent with foreign capital returning to Korean equity and fixed-income markets. Foreign investors were net buyers during the session, providing the technical momentum that carried the index through key resistance levels that had capped advances in prior sessions.

The move reinforces a broader regional trend of tech-driven equity recoveries across Asia-Pacific markets. For Samsung and SK Hynix, the session gains build on a recovery narrative centred on high-bandwidth memory demand for AI accelerators. The key test remains Q3 earnings guidance, where both companies are expected to quantify the pricing uplift from AI-related orders against lingering legacy DRAM oversupply.