The Motley Foolยท2025-09-10 07:51Core Insights - Tiger Global Management's billionaire boss, Chase Coleman, has made significant changes to his investment portfolio, notably reducing his stake in CrowdStrike Holdings while increasing his investment in Amazon, a leader in multiple industries [1][16]. Group 1: CrowdStrike Holdings - Chase Coleman reduced Tiger Global's stake in CrowdStrike from over 6.55 million shares to just 900,000 shares by the third quarter of 2022, and further sold 400,000 shares in the second quarter of 2025 [5][9]. - CrowdStrike's Falcon security platform utilizes AI and machine learning, enhancing its ability to respond to threats, and has maintained customer loyalty despite premium pricing [6][8]. - As of September 5, CrowdStrike shares were valued at approximately 24 times trailing-12-month sales and 87 times forward-year earnings, raising concerns about the sustainability of its premium valuation [12][13]. Group 2: Amazon - Amazon has become a significant focus for Tiger Global, with Coleman increasing his stake by 62% during the June-ended quarter of 2025, making it a top-four holding for the fund [17]. - Amazon Web Services (AWS) is a key driver of growth, accounting for 32% of global market share and expected to grow significantly due to aggressive AI integration [19][20]. - Despite representing less than 19% of net sales, AWS contributes nearly 58% of Amazon's operating income, highlighting its importance to the company's financial health [20].