Asia shares surge on tech mood swing, oil retreats

Asian stock markets experienced a significant rally on Wednesday, propelled by a resurgence in technology stocks and strong corporate earnings that mirrored Wall Street's record-breaking performance. Japan's Nikkei index climbed 3.0 percent, while South Korea's market added 3.4 percent, continuing its volatile trend. The MSCI's broadest index of Asia-Pacific shares outside Japan rose 1.5 percent.

Despite the overall positive sentiment, not all technology firms benefited equally. Investors appeared to take profits on chipmaker AMD, even as its results surpassed forecasts, leading to a 9 percent drop in its shares after hours. SpaceX, the AI and satellite group, also shed 7.5 percent, reversing much of its earlier gains, amid concerns that substantial capital expenditure was consuming its cash flow. This recurring worry about the high cost of compute power for AI stocks, coupled with rising borrowing costs, remains a central theme for investors.

"SpaceX continues to execute strongly operationally, but its ambitious investment program means additional capital will almost certainly be required over the medium to longer term," noted Chris Weston, head of research at broker Pepperstone. "How management funds that growth, and at what cost, is likely to remain a central theme for investors over the coming quarters."

Sentiment was further bolstered by a decline in oil prices. Reports from Qatar suggested mediators were making progress toward ending the U.S.-Iran war, although specific details were scarce. Brent crude eased 0.4 percent to $79.02 a barrel, a significant drop from its July peak of $102, while U.S. crude fell 0.5 percent to $75.35. This pullback in oil prices helped alleviate inflation fears and provided a boost to global bond markets, with 10-year Treasury yields falling to 4.6187 percent.

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SpaceX continues to execute strongly operationally, but its ambitious investment program means additional capital will almost certainly be required over the medium to longer term. How management funds that growth, and at what cost, is likely to remain a central theme for investors over the coming quarters.