Duquesne Family Office boosts Amazon and semiconductor stakes, adds Alphabet and Insmed calls, exits Broadcom

During the quarter ended June 30, 2026, Duquesne Family Office made notable portfolio adjustments, including initiating several new positions and scaling existing stakes across technology, biotech, and transport sectors. The firm opened new positions in Insmed Inc call options ($144K, 2.8% of portfolio), Alphabet Inc ($120K, 2.3%), Fox Corp Class A ($115K, 2.2%), and CDW Corp ($105K, 2.0%). It also established call option positions in CDW Corp, Tesla, and Meta Platforms.

Duquesne significantly expanded its position in Amazon.com Inc, increasing its common stock holding by 1,083% to $129K alongside a 130% increase in Amazon call options to $109K. Other prominent position increases included United Airlines Holdings (+203% to $108K), Seagate Technology Holdings (+141% to $118K), STMicroelectronics (+19% to $232K), Taiwan Semiconductor (+19% to $282K), and iShares Russell 2000 ETF call options (+318% to $99K).

Conversely, the firm liquidated positions in Broadcom (previously $61K), Option Care Health ($50K), Figure Technology Solutions ($39K), Restaurant Brands International ($34K), and Lattice Semiconductor ($30K). Substantial position cuts were also executed in Alcoa Corp (-88% to $10K), Roku Inc (-75% to $25K), Teva Pharmaceutical Industries (-74% to $21K), and Woodward Inc (-68% to $29K).

Position changes