BTC current price $66,000. Spot ETF inflows have continued for multiple days, forming institutional buy-side support, but the 4-hour RSI has entered the overbought zone. Buying momentum lags behind price, and volume-price divergence has effectively overextended bullish energy. Derivatives aggregated bullish options orders in the 66,500–67,000 range are setting up liquidation selling pressure. Market makers’ negative gamma exposure suppresses upside elasticity; 65,000 has flipped from prior resistance into strong short-term support, while 62,300 is the core on-chain long-term holder defense line.