U.S. stock futures saw a modest increase on Wednesday, with S&P 500 contracts gaining 0.2%, the Dow Jones advancing around 140 points, and Nasdaq 100 futures remaining relatively unchanged. This movement followed a lackluster session on Tuesday. Traders are keeping a close eye on corporate earnings and trade updates, especially in light of President Trump's announcement of heightened tariffs on countries purchasing energy from Russia. Additionally, he indicated that new tariffs on semiconductor and pharmaceutical imports would be announced "within the next week or so." Arista Networks experienced a notable 13% surge in premarket trading after surpassing projections, while McDonald's rose by 3%, buoyed by robust earnings and revenue figures. Conversely, Advanced Micro Devices saw a decline of over 6% due to the absence of a definitive timeline for resuming sales in China. Walt Disney's shares fell by 1.3% after failing to meet revenue expectations, and Uber dropped by 3% despite exceeding projections. Meanwhile, Super Micro Computer experienced a steep decline of more than 17% following a reduction in its annual sales forecast.