CME Group U.S. Treasury Open Interest Surges to Record High of 36.3 Million Contracts

CME Group U.S. Treasury Open Interest Surges to Record High of 36.3 Million Contracts [Accessibility Statement] Skip Navigation- Additional OI records in 2-, 5-, 10-, and 30-year productsCHICAGO, Feb. 24, 2026 /PRNewswire/ -- CME Group, the world's leading derivatives marketplace, today announced that open interest (OI) in its deeply liquid U.S. Treasury futures and options set a new record of 36,328,151 contracts on February 19. The company's previous OI record hit in November 2025 with 35,120,066 contract ...