Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- IREN (IREN) shares skyrocketed on reports that Nvidia (NVDA) is investing as much as $2.1 billion in the data center developer IREN Ltd. as part of a broader partnership between the two companies aimed at accelerating the construction of artificial intelligence infrastructure. IREN has agreed to issue Nvidia a five-year right to purchase as many as 30 million shares at an exercise price of $70, the companies said in a statement Thursday. IREN’s shares soared 21% to $69.29 in after-hours trading on Thursday. Nvidia’s stock was virtually unchanged. 

- Block (XYZ) shares surged after it raised its full-year profit forecast following AI-related job cuts announced earlier in the year. The Jack Dorsey co-founded payments company expects gross profit of $12.33 billion by the end of the year, Block said in a statement Thursday. That’s slightly higher than the $12.1 billion that analysts on average estimated. It also forecast adjusted operating income of $3.34 billion, higher than the $3.2 billion projected by analysts. Block’s shares had gained nearly 8% this year before the post-market release.

- Airbnb (ABNB) boosted its annual forecast on robust bookings in the major markets in the Americas, while it posted a big jump in spending as part of an effort to diversify the business. The short-term rental company said it expects annual revenue growth to “accelerate to low- to mid-teens.” In February, Airbnb told investors it anticipated annual sales would gain “at least low double digits.” Analysts, on average, projected a 12% jump, according to data compiled by Bloomberg. The shares gained about 1% in extended trading after closing at $140.46 in New York. The stock had been up about 3.5% this year.