This article analyzes TCI Fund Management's 13F portfolio changes in Q1 2026. The firm's portfolio value decreased to $45.17B, with top holdings GE Aerospace, Visa, and Moody’s constituting 63% of assets. Key moves included significant increases in Visa, S&P Global, and Alphabet, alongside a sharp reduction in Microsoft shares, indicating a strategic reallocation.

The RiverPark Long/Short Opportunity Fund's Q1 2026 commentary highlights key investment decisions and portfolio adjustments. Applied Materials outperformed due to AI demand, while Costco thrived on its membership model. TSMC reported strong revenue, signaling high capacity utilization. Microsoft faced investor concern over Azure growth and capital expenditure. Pinterest was exited due to disappointing revenue and guidance, impacted by tariffs.