Cme group adjusted interest rate total return futures reach record open interest of 1 million contracts

Chicago , sept. 16, 2025 /prnewswire/ -- cme group, the world's leading derivatives marketplace, today announced that its suite of adjusted interest rate (air) total return futures reached an open interest (oi) record of more than 1 million contracts (equivalent to $365 billion notional) as well as a single-day volume record of 109,000 contracts (equivalent to $40 billion notional) on september 11.
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