The U.S. stock market closed higher on Thursday, with the S&P 500, Nasdaq Composite, and Dow Jones all posting gains. The S&P 500 rose 60.93 points (+0.81%) to 7,543.64, the Nasdaq Composite gained 336.24 points (+1.30%) to 26,206.89, and the Dow Jones added 139.02 points (+0.27%) to 52,487.41. The broad-based rally was driven by optimism surrounding artificial intelligence (AI) and strong performances in the technology sector, which offset concerns about geopolitical tensions, particularly in the Middle East. Tech stocks, including Micron, Nvidia, SpaceX, Marvell, and Broadcom, contributed significantly to the gains, with ASML and Arm also seeing notable increases.

The market's performance was influenced by a mix of factors, including a report on workers leaving the U.S. labor force and warnings from Warren Buffett about potential market risks. Despite these concerns, the overall tone was risk-on, with investors favoring growth-oriented sectors. The market also reacted to comments from former President Donald Trump indicating that the ceasefire in Iran was over, leading to a brief decline in futures but a subsequent recovery in the closing session. Oil prices saw gains, while U.S. stock futures initially dropped on news of new strikes, reflecting the market's sensitivity to geopolitical developments.