As a result, Krispy Kreme's short interest had increased to 14.2% of shares outstanding, but a higher 26.4% of its publicly traded float, as of June 30. That's a high-enough short interest, especially in a lower-float stock, to cause a big move on a surge of unexpected buying. And it appears meme stock traders happened to target Krispy Kreme today.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.

US Treasury secretary Scott Bessent announced on Tuesday that that a third round of trade talks with China is now scheduled and will commence next week in Sweden. The goal is to delay an August deadline that has threatened to increase tariffs between the world's two largest economies.