US stock futures were little changed on Thursday after the major averages finished the previous session higher, led by a rally in technology stocks. On Wednesday, the Nasdaq Composite rose 0.94% to close at a record high, while the Dow and S&P 500 added 0.49% and 0.61%, respectively, each logging their first gains in three sessions. Tech shares drove the rally amid sustained enthusiasm for artificial intelligence. Notable performers included Nvidia, up 1.8%, and Palantir, which jumped 2.5%. In corporate news, Verona Pharma soared 20.6% on reports that Merck plans to acquire the UK-based lung disease specialist in a $10 billion deal. On the policy front, President Donald Trump announced a 50% tariff on Brazilian imports late Wednesday, citing unfair trade practices. Meanwhile, minutes from the Federal Reserve’s June meeting showed policymakers viewed the new tariffs as inflationary, prompting them to hold off on interest rate cuts.