Asian technology stocks rallied sharply on August 5 after a record-setting Wall Street session overnight, with SoftBank shares jumping more than 10%, Tokyo Electron +3.64%, Advantest +7%, and Kioxia +6.34%. In South Korea, SK Hynix surged 6.9%, Samsung gained 4%+, and Seoul Semiconductor popped 7.6%. The rally followed a strong Tuesday U.S. close: S&P 500 and Dow Jones hit fresh record highs; Nasdaq Composite rallied 2.59% to 26,584.99 on robust corporate earnings and easing oil prices (Strait of Hormuz reopening optimism).
SoftBank's outperformance was anchored by its majority-owned subsidiary Arm Holdings, which jumped overnight on optimism over higher AI-related data center royalties and CPU development plans. Ortus Advisors' strategist Andrew Jackson noted that the U.S. semiconductor rally reinforced bullish outlook for Asian AI infrastructure names, pointing to strength in chipmakers and suppliers as data center capex accelerates.
For macro readers: Asian tech-heavy indices are now highly correlated with U.S. AI enthusiasm. SoftBank's leverage to Arm royalties and the memory chip demand cycle means further swings are likely if U.S. earnings or capex guidance softens. The rally also signals confidence that AI spending is sustaining across geographies, not reverting to U.S.-only concentration.