On Wednesday, U.S. stock index futures were mixed after oil prices rose following Iran’s resumption of attacks on the United States, while South Korea’s stock market fell due to a sell-off in chip stocks.Brent crude oil prices rose more than 3%, approaching $85 per barrel. South Korea’s KOSPI index fell nearly 6%, dragged down mainly by chip stocks such as Samsung and SK Hynix. Although SK Hynix’s second-quarter profit rose 557% year-over-year, it fell short of Wall Street expectations, sparking market concerns that the artificial intelligence boom may be slowing.Investors are closely watching the Federal Reserve’s upcoming interest rate decision. The market widely expects rates to remain unchanged, but given persistently high inflation, the possibility of a rate hike has not been completely ruled out. Additionally, earnings reports from Microsoft, and Meta are set to be released after the market closes and are viewed as key indicators of the AI sector’s direction.