Bitcoin: Spot ETFs Draw $1.61B in Five Days

Bitcoin spot ETFs recorded positive net flows for five straight trading days totaling $1.61B, with Aug 20 alone delivering $606.3M led by BlackRock’s IBIT at +$503M while Aug 21 data remains partial. BTC trades at $77880.61 inside its Bollinger Bands with upper resistance at $81218.82 and lower support at $61911.99; the 4h structure shows EMA50 at $68649.97 and EMA200 at $65388.37 acting as concrete long-term supports beneath a MACD golden cross of 3430.43. With price testing upper Bollinger resistance at $81218.82 while RSI(14) flashes overbought at 88.83, a healthy retracement to the 50-EMA support at $68649.97 appears probable before further continuation, supporting continued institutional crypto adoption and refined BTC price prediction models.