Stock futures rose early Wednesday as markets continued to shrug off geopolitical fears ahead of Nvidia’s eagerly-anticipated earnings. Futures on the S&P 500 rose 0.1%, Dow Jones Industrial Average futures added 85 points to climb 0.2% and Nasdaq 100 futures were 0.1% up ahead of the open. The Dow extended its slide Tuesday, falling for a fourth consecutive trading day, but the S&P 500 and Nasdaq Composite closed higher, helped by strong gains for Nvidia, Tesla, Amazon and Alphabet.