Appaloosa Management, led by David Tepper, has produced strong results in the AI semi space through a major position in Micron. The fund bought a sizable stake in Micron during the fourth quarter of 2025, before the stock rose more than 100%. Micron has gained about 122% year to date, and even after a correction remains a strong performer. In the first quarter of 2026, Appaloosa added roughly 11% more to its Micron position, and the top-up is already showing gains as Micron rose more than 55% over the past month. The performance is presented as evidence of precise timing and effective investment decisions early in the AI boom.
"Appaloosa has been making some really outstanding calls, specifically within the AI semi space, with the purchase of a big chunk of Micron ( NASDAQ:MU | MU Price Prediction) shares in the fourth and final quarter of last year. The 13-F filings from Q4 2025 don't quite reveal specifics as to when Tepper and Appaloosa bought that sizeable position. But, nonetheless, Tepper's fund got a magnificent seat in the DRAM firm ahead of a more than 100% gain."
"Year to date, Micron stock is up around 122%. Even with the latest correction, the name has been a timely double. And while only time will tell what Appaloosa has done with its Micron position as of this current second quarter, I do think that the Micron trade (or maybe it's a longer-term investment?) was worth a round of applause for its surgical precision."
"More recently, Appaloosa added to its position slightly (by around 11%) in the first quarter of 2026. Given shares of Micron are up more than 55% in the past month, that top-up is already proving to be another winning move. While the Q1 2026 moves might already be last quarter's news, I do think that some of the big moves are more than worth investor attention."
Read at 24/7 Wall St.
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