By Andrea Hargraves 
Wall Street's main indexes ended slightly higher on Tuesday, after a session mixed with gains and losses, with investors focused on AI-darling Nvidia's second-quarter earnings, which will be known on Wednesday.
The S&P 500 added 0.16% to 5,625.8 points. The Nasdaq Composite rose 0.16% to 17,754.82 points, while the Dow Jones advanced 0.024% to 41,250.50 points, marking a new all-time high for the second straight session.
Nvidia has been one of the biggest beneficiaries of the recent AI boom, with its shares up more than 166% year to date. The Jensen Huang-led company was up 1.46% today at $128.3 and its stock was the most actively traded in the U.S. today.
“There is a very high ceiling — not just for Nvidia’s results and guidance — but for the story the company is telling about the state of AI that could lift the tech sector out of the recent downturn,” said Ross Mayfield, a strategy analyst at Baird.
Among the major market moves, Paramount Global shares fell more than 7% after Edgar Bronfman withdrew his offer for the company, opening the door to Skydance Media taking full control of Shari Redstone's empire.
Tesla shares fell about 2% after Canada announced it would impose a 100% tariff on Chinese electric cars, which would include Elon Musk's brand.
Super Micro Computer lost 2.64% after short seller Hindenburg Research disclosed it had a short position in the AI server maker.