CME Bitcoin futures open interest fell to 90,030 BTC after the June expiry, the lowest level since October 2023 and a 57.7% notional drop from the December 2024 peak. The front-month contango narrowed to roughly 0.02%, and the annualized basis hovered below 4%, dipping near 2% in illiquid hours. The data points to a broad unwinding of directional leverage among institutional traders.
CME open interest hits 2.5-year low
The 90,030 BTC figure marks a stark retreat from the highs of late last year. Open interest — total outstanding contracts — often signals how much leveraged money is in the market. A drop of this size suggests a significant deleveraging event, though the facts don't specify a single trigger. The June 2026 CPI report showed headline prices fell 0.4% month-over-month, with the 12-month rate easing to 3.5%. That may have shifted rate expectations, but the OI decline started before the CPI release.
Basis flattens, perps pick up
Into early July, the 3-month annualized basis ticked to about 3.3%. Meanwhile, perpetual swap funding — a 7-day moving average — rose to roughly 6.25% annualized. The positioning data tells a clear story: perpetual swap open interest increased by 15,600 BTC, while CME OI dropped by 8,000 BTC. That divergence means traders are moving from regulated futures to crypto-native perp swaps. Perps are cash-settled and use funding rates to track spot, making them more tactical instruments.
What the numbers say about leverage
Shallow basis and reduced CME OI suggest lighter directional leverage overall. The rebuilding activity in perps hints at more short-term, tactical risk taking rather than long-dated bets. It's not a bullish or bearish signal by itself — it's a structural shift in where and how traders are placing their chips. The basis is the difference between futures and spot; contango means futures above spot. Right now, that gap is barely there.
The next concrete thing to watch is the July expiry. If CME OI stays low and perp funding remains elevated, the market is telling us institutions are sitting out while retail and crypto-native funds play a faster game. No one's calling a bottom or a top — but the leverage map has redrawn.
