US stocks traded mixed on Monday to kick off the first trading day of June. The tech-heavy Nasdaq Composite remained the only major index in the green, up roughly 0.2%, as Nvidia shares popped on the heels of an AI chip update. Rival AMD's stock also tipped higher alongside the release of its own new AI lineup and development plans. The benchmark S&P 500 lost steam to fall about 0.3% in early afternoon trading while the Dow Jones Industrial Average fell 0.7%.
The stock skyrocketed over 100% at one point in early trading after a Reddit post apparently by Keith Gill — aka "Roaring Kitty" — showed a big bet by the influential trader. Fellow meme darling AMC's shares shot up as much as 27% alongside the move. Shares of GME, which were briefly halted for volatility, pared gains to about 30%. Overall, stocks are looking to build on their strong performance in May, which saw all three major gauges break records during the month.