EconomyOpen Interest, October 21, 2026

Bloomberg’s Open Interest previews the US trading day, with Wall Street divided over AI: Ken Griffin warns of a bubble while Larry Fink says to keep building. Musk is weighing a $3.5 trillion SpaceX-Tesla tie-up. United warns about higher fuel costs, and Netflix growth slows. The program also examines AI overinvestment and activist opportunities in tech and media.