Bitcoin Open Interest Tops $5B on Binance for First Time Since May as BTC Reclaims $81K

Bitcoin-Open-Interest-Tops-5B-on-Binance-for-First-Time-Since-May-as-BTC-Reclaim

Bitcoin open interest on Binance reached $5.11 billion on September 4, crossing the $5 billion mark for the first time since May 5, as BTC moved back above $81,000.

The increase was also visible beyond Binance. 
Bybit open interest rose to $2.60 billion, its highest level since May 5 and roughly 7% above the $2.43 billion recorded on that date.

The move provides a broader confirmation that derivatives activity is rebuilding alongside Bitcoin’s latest price advance. 
However, the recovery remains uneven: Gate.io and HTX are still about 15% below their respective May 5 levels.

The key signal is therefore not simply higher open interest, but the return of multi-exchange derivatives activity to four-month highs while Bitcoin trades back above $81,000.