U.

U.S. stock futures show cautious optimism as markets brace for Friday's close. S&P 500 futures edged up 0.07 percent, Dow Jones gained 0.03 percent, and Nasdaq futures climbed 0.14 percent ahead of the session. However, geopolitical tensions loom large after Iran and the U.S. exchanged military fire, threatening a month-long Middle East ceasefire. Oil prices surged over 2 percent to $96.80 per barrel in response to the escalating conflict. Treasury yields rose to 4.38 percent, potentially pressuring stock valuations and borrowing costs for businesses. Investors are closely watching the non-farm payrolls report expected Friday, with economists forecasting job growth of 62,000 for April. The dollar strengthened amid rising tensions, while the yen struggled against the greenback.