According to CoinMeta, on Wednesday, U.S. stock index futures found support after Iran launched a surprise attack on the United States, oil prices rose, and South Korea's benchmark index suffered another heavy blow, indicating continued selling pressure on U.S. chip stocks. S&P 500 futures rose by 0.2%, while Dow Jones Industrial Average futures remained above the flat line. Nasdaq 100 futures, which are heavily weighted with tech stocks, slightly declined as Asian investors once again sold off chip stocks such as Samsung and SK Hynix, causing South Korea's composite index to fall by nearly 6%. SK Hynix reported a 557% year-on-year increase in profits for the second quarter, but this was lower than Wall Street's expectations, sparking concerns that the boom in artificial intelligence may slow down. Iran launched a "surprise attack" in the Middle East conflict on Tuesday, and the U.S. Central Command stated that this was the first exchange of fire since the ceasefire last Friday. Oil prices rose, with Brent crude increasing by more than 3%, trading near $85 per barrel. The Federal Reserve will make its interest rate decision at 2 p.m., and the market generally expects rates to remain unchanged, but the persistently high inflation still makes the possibility of a rate hike a reality.