A rout in South Korea's technology sector significantly impacted emerging-market equities on June 23, 2026. The MSCI's stock index for emerging markets experienced a 3.7% decline, marking its largest drop since April of the previous year. This downturn was largely driven by major South Korean chipmakers, with Samsung Electronics Co. and SK Hynix Inc. both seeing their shares fall by over 12%. This substantial drop in these key tech companies contributed to the Kospi index falling by 10%. The ripple effect extended beyond South Korea, as Taiwan Semiconductor Manufacturing Co. also saw a slide, reflecting a broader pullback from stocks associated with artificial intelligence.
The weakening of most developing-nation currencies accompanied the decline in equities, a symptom of the worsening global risk sentiment. This market reaction aligns with a challenging backdrop for risk assets, exacerbated by the adjustment higher in U.S. yields, which has been influenced by hawkish repricing of Federal Reserve rate hike expectations. The dollar's strength, reaching a one-year high, was fueled by renewed hopes for Fed interest rate increases, which also contributed to the downturn in Asian markets and pressure on various currencies.
The South Korean equities market experienced a particularly severe sell-off, prompting a 20-minute trading halt. Foreign investors were significant sellers, offloading more than $2.6 billion of Kospi-shares by midday. This tech-led sell-off occurred ahead of memory chipmaker Micron Technology's quarterly earnings results. The strong dollar and expectations of continued Federal Reserve rate hikes further pressured emerging markets, as higher U.S. rates generally make dollar-denominated assets more attractive and can lead to capital outflows from developing economies.
