CoinEx News: Bitcoin traded near $77,568 on May 21, while aggregate futures open interest fell to $56.24 billion on May 20 from $62.27 billion on April 22, a 9.7% decline, according to market and Coinglass data. Over the same window, futures volume dropped 34.6% to $51.42 billion, even as funding recovered to a mildly positive 0.0167%. The setup points to a cleaner but less aggressive BTC rebound: price has stabilized, but leverage and turnover have not rebuilt at the same pace. This does not confirm a bullish breakout; it suggests traders are still cautious, with upside needing either spot demand or renewed derivatives participation to sustain momentum.