Tuesday, August 18, 2026

Today’s Key Insight

Geopolitical friction in the Middle East, highlighted by threats surrounding the Strait of Hormuz, has injected volatility into global markets, driving up crude oil and gold in the latest session. Concurrently, South Korea’s macroeconomic outlook has been significantly upgraded by Moody’s to 3.5% growth, powered by an extended semiconductor supercycle. This divergence highlights a global market caught between immediate geopolitical risks and robust structural technology demand.

Market Overview

Korea. With domestic markets closed for a holiday, the KOSPI’s latest available level from August 14 stands at 6,977.94, up 2.42%. Sentiment remains highly positive as Moody’s raised Korea’s GDP growth forecast to 3.5% on expectations that the semiconductor boom will persist, while regional memory chipmakers in Japan and Taiwan surged during the Korean holiday.

US. US equities retreated in the August 17 session, with the S&P 500 falling 0.52% and the Nasdaq down 0.32% as geopolitical anxieties pushed the VIX up by 6.60%. The US 10-year Treasury yield rose to 4.72% in the prior session, suggesting that investors are demanding a higher term premium amid rising global uncertainties.

Cross-Market Signals

• Strait of Hormuz Tensions Boost Commodities: Trump’s warnings to Oman over the Strait of Hormuz likely triggered the 3.09% jump in WTI oil and 2.12% rise in gold on August 17, reflecting heightened supply and geopolitical risks.
• Semiconductor Optimism Outlasts Market Closures: Moody’s upgrading Korea’s growth forecast to 3.5% alongside surges in Japanese and Taiwanese chip stocks suggests that the semiconductor sector remains a powerful secular driver despite short-term equity pullbacks.
• Rising VIX and Yields Signal Caution: The simultaneous rise in the VIX index and US 10-year yields on August 17 indicates that investors are hedging against geopolitical shocks while pricing in persistent macroeconomic pressures.