Billionaire investor David Tepper's Appaloosa Management aggressively increased its holdings in "Magnificent Seven" stocks such as Amazon, Meta Platforms, Google, and NVIDIA during the second quarter. Among these, Amazon is its largest portfolio holding, accounting for over 15%; Google is its fourth-largest holding; and NVIDIA is also among its top ten holdings. Concurrently, the hedge fund manager also sold off some high-growth memory stocks.