Asian Markets Jump, With KOSPI Index Leading The Way

Asian markets delivered their strongest session in months today, with South Korea’s KOSPI index added 8.44% as geopolitical tensions showed signs of easing and blockbuster trade data reinforced the region’s economic resilience amid global uncertainty.

The rally followed Wall Street’s best performance since May, where the Dow Jones Industrial Average climbed 2.49%, the S&P 500 advanced 2.91%, and the Nasdaq Composite surged 3.83%. The catalyst: statements from U.S. President Donald Trump suggesting the Iran conflict could conclude within two to three weeks, coupled with unconfirmed reports that Iranian President Masoud Pezeshkian may be open to negotiating an end to hostilities with appropriate security guarantees.

South Korea index the Kospi led regional gains with a close at 5,478.70, while the technology-heavy Kosdaq small-cap index climbed 6.06%. The surge came as official data revealed March exports rocketed 48.3% year-over-year to reach an all-time monthly high, substantially exceeding the Reuters consensus forecast of 44.9% growth. The export boom, driven primarily by semiconductor shipments and AI-related technology hardware, pushed South Korea’s trade surplus to multi-year highs and marked the nation’s 14th consecutive month of positive trade balance.

Japan’s Nikkei 225 rose 5.24%, with financial stocks leading the advance, while the broader Topix index added 4.95%. The rally gained additional fundamental support from the Bank of Japan’s quarterly Tankan survey for the first quarter of 2026, which showed business sentiment among large manufacturers climbing to 17 from 15 in the previous quarter. The reading beat economist expectations of 16 and reached the highest level since the fourth quarter of 2021. Large non-manufacturers reported a diffusion index of 36, unchanged from the prior quarter but comfortably above the Reuters poll consensus of 33.

Greater China markets participated in the risk-on mood, though with more modest gains. Hong Kong’s Hang Seng index advanced 2.09%, powered by basic materials stocks positioning for a potential global manufacturing recovery, while mainland China’s CSI 300 rose 1.71%. The enthusiasm was tempered somewhat by private survey data showing China’s manufacturing activity lost momentum in February. The PMI registered 50.8, missing analyst forecasts of 51.6 and decelerating from the prior month’s reading of 52.1, which had marked a more than five-year high.

India stocks also posted solid gains, with the Nifty 50 climbing 2.4% by middle of their trading day, and the Sensex advancing 2.46%, reflecting the country’s status as a core emerging market allocation when global risk appetite improves.

The breadth and magnitude of today’s rally underscores how significantly Middle East geopolitical risk had weighed on regional sentiment in recent sessions. Markets across Asia had been pricing in elevated tail risks around potential disruptions to oil supply through the Strait of Hormuz, higher energy costs feeding into inflation, and broader supply chain complications. The possibility of de-escalation removes some of that premium, particularly benefiting high-beta cyclical sectors and export-oriented economies.

However, some caution continues, in that the current optimism rests on unverified diplomatic signals rather than concrete agreements. No formal ceasefire has been announced, and past episodes of conflict in the region have demonstrated how quickly sentiment can reverse on headline developments. Oil prices remain elevated relative to pre-conflict levels, and even a swift resolution would not immediately eliminate the inflationary pressures and supply chain adjustments already set in motion.

Looking ahead, markets will need to see concrete progress toward a diplomatic resolution to sustain the current optimism. Any setback in negotiations or renewed military action could trigger equally sharp reversals, particularly in the higher-beta markets like South Korea and Hong Kong that posted the largest gains. The upcoming weeks will likely see elevated volatility as traders react to each new development in the diplomatic process.