KOSPI Surges +5.12%: Two Stocks Built This Number

Key Takeaways

• 98.8% of foreign net buying went into SK Hynix and Samsung
• Combined inflows ~3.08 trillion KRW (~$2.1 billion) drove KOSPI +5.12%
• AI memory demand validated; power‑infrastructure theme also emerged
• Hormuz oil shock kept Nasdaq futures below Bull pivot 27,800
• US investors should watch Palantir earnings for AI software confirmation

Pulse Analysis

The KOSPI’s 5.12% rally was not a broad‑based market surge but a concentrated flow event. Foreign investors injected roughly $2.1 billion, almost entirely into SK Hynix and Samsung Electronics, which together represent 43.6% of the index’s market cap. This concentration underscores a growing conviction in the AI‑memory supply chain, as both companies supply high‑bandwidth memory (HBM) to leading U.S. datacenters. By converting the 1.7768 trillion KRW (≈$1.21 billion) and 1.2051 trillion KRW (≈$0.82 billion) purchases into dollar terms, the scale of the bet becomes clear for global investors.

At the same time, a supply‑shock in the Strait of Hormuz lifted oil prices, pressuring energy‑intensive semiconductor names and keeping Nasdaq‑100 futures (NQM26) below the 27,800 Bull‑case pivot. The shock created a divergence: while Korean AI‑memory stocks rallied, U.S. chip makers like AMD and Intel slipped, highlighting the importance of logistics exposure in the current risk environment. The interplay with the U.S. 10‑year Treasury, which held just under the 4.50% failure threshold, adds a macro layer that could tip the Nasdaq futures either side of the pivot.

Looking ahead, the market’s next inflection point hinges on Palantir’s earnings. A beat on the $0.28 EPS and $1.54 billion revenue consensus would confirm AI‑software monetization, reinforcing the Korean hardware signal and likely pushing Nasdaq futures above 27,800, which could spark further buying in the SOX and related tech indices. Conversely, a miss would activate the Bear case, pulling the Nasdaq back toward the 27,500 support and reviving concerns about AI demand deceleration. Investors should monitor both the Hormuz‑driven energy dynamics and the upcoming earnings to gauge whether the AI‑memory thesis can translate into sustained upside across the U.S. tech landscape.