Bitcoin's institutional momentum cooled in May.
BTC fell ~3.4%, ETF flows reversed with ~$2B in outflows, treasury company purchases dropped to ~$2B, and CME open interest fell ~20%, erasing April's gains.
Yet key infrastructure progress continued: the CFTC cleared US-regulated BTC perpetuals, CME moved crypto derivatives to 24/7 trading, and Bitcoin Volatility futures (BVX) are set to launch in June.
Institutional demand softened, but market access and risk-management tools for US investors took a major step forward.