Hedge funds unwind Bitcoin basis trade as CME net shorts fall 89%
Hedge funds reduced their net short position in CME Bitcoin futures by 89% from December 2024's peak, holding 2,591 contracts (12,955 BTC) as of November 2026. The Bitcoin basis trade, which profits from the spread between spot and futures prices, has become less attractive due to a shrinking premium. Multi-strategy hedge funds also cut spot Bitcoin ETF exposure by 68,000 BTC ($5.4B) between September 2025 and June 2026. CME Bitcoin futures open interest fell to 17,527 contracts (87,635 BTC).
How this was made
The 30-second read
Why it matters
The unwind suggests less arbitrage flow into Bitcoin ETFs and may make ETF flow data a clearer gauge of genuine demand.
Market read
Institutional unwinding of the basis trade reduces short pressure on Bitcoin, potentially supporting price stability or modest gains.
What to watch
Potential regulatory changes or macro‑economic shifts could quickly reverse the current low‑basis environment.
Background
The article reports the first detailed data on hedge‑funds' reduction of the Bitcoin basis trade, a key metric for institutional crypto exposure.
Ticker impact
Hedge funds cut their net short in CME Bitcoin futures by 89% to the smallest level since Feb 2023, indicating a major unwind of the Bitcoin basis trade.
likely upward pressure as the basis trade diminishes and short exposure contracts unwind
A sharp reduction in futures shorts removes a key source of downside pressure; the basis is now only 4.8% annualized, making the trade unattractive.
Market effects
Reduced hedge‑fund short exposure may improve sentiment for crypto‑related ETFs and spot Bitcoin demand.
US‑based crypto markets may see modest price gains; global impact limited to crypto‑focused investors.
Signals a shift in institutional crypto positioning that could affect broader digital‑asset markets.
Counterpoint
If the basis widens again, the unwind could be temporary and short‑bias may return, limiting upside.
Key entities
- hedge fundMillennium Management
One of the multi‑strategy funds reducing its Bitcoin ETF exposure.
- hedge fundBrevan Howard
Another fund cutting its spot Bitcoin ETF holdings.
