U.S. stock markets closed weaker as investors reacted to escalating geopolitical uncertainty. Major indices, including the Dow Jones Industrial Average, S&P 500, and Nasdaq, fell following comments from U.S. leadership that the conflict with Iran will continue in the coming weeks, which kept risk sentiment subdued.

The S&P 500, which tracks 500 of the largest U.S. companies, declined nearly 0.9% on the day. Broader equity benchmarks weakened as stock buyers remained cautious ahead of key earnings reports and further geopolitical developments.