Asian Markets Surge then Plunge Amid U.S.-Iran Deal Talks

Global markets experienced extreme volatility between August 5 and August 6, 2026, driven by a mix of artificial intelligence optimism and Middle East diplomacy. On Wednesday, Asian benchmarks in Tokyo, Seoul, and Taipei surged over 3% following record-breaking rallies on Wall Street. This growth was fueled by strong earnings from AI firms, notably Palantir Technologies, which reported a 93% revenue leap. Market confidence was further bolstered by signals that the United States and Iran were nearing a deal to reopen the Strait of Hormuz, which caused crude oil prices to drop over 10% that week.

U.S. Treasury Secretary Scott Bessent and Iranian Foreign Ministry spokesman Esmaeil Baqaei both indicated that negotiations, mediated by Oman, were progressing positively toward ensuring freedom of movement for international shipping. By Thursday, Iran and Oman reportedly reached an agreement on a proposed shipping route, though a final deal remained contingent on the United States lifting its blockade of Iranian ports.

The rally reversed on Thursday as investors pivoted toward profit-taking and questioned the sustainability of massive AI capital expenditures. This shift followed disappointing reactions to earnings from AMD and SpaceX. In South Korea, the Kospi dropped over 4.5%, triggering a sell-side circuit breaker as Samsung Electronics and SK Hynix shares plummeted. Japan's Nikkei also fell around 2%. Despite the sell-off, financial institutions like J.P. Morgan maintained that the AI investment cycle remains fundamentally sound.