U.S. stock futures were little changed on Wednesday after the S&P 500 and Nasdaq Composite ended a three-day losing streak, boosted by gains in Nvidia and other tech companies. In extended trading, Rivian shares jumped nearly 50% following Volkswagen's announcement to invest up to $5 billion in the electric vehicle maker, and FedEx shares surged 14% due to better-than-expected quarterly results and cost-cutting measures. During regular trading on Tuesday, the S&P 500 and Nasdaq Composite rose by 0.39% and 1.26% respectively, while the Dow fell by 0.76%. These moves came as Nvidia climbed 6.8% after three days of heavy selling, leading a rally in technology and artificial intelligence stocks. Other tech companies, including Tesla (2.6%), Meta Platforms (2.3%), and Alphabet (2.7%), also saw significant gains. Investors are now looking ahead to earnings reports from General Mills, Paychex, and Micron Technology on Wednesday, as well as the U.S. PCE inflation data on Friday.