In the more than three years since CME Group made Eris SOFR Swap futures (Eris SOFR) eligible for portfolio margining (PM) with cleared interest rate swaps (IRS), volume and open interest have risen markedly, culminating in record monthly ADV of more than 60,000 contracts and record quarterly average daily open interest (790,596 contracts) in September 2026. Over that span, quarterly average daily volume has risen more than 4X to 31,824 contracts
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