BlackRock clients have reportedly sold approximately $284 million worth of Bitcoin, intensifying concerns over weakening institutional demand in the crypto market. This significant transaction comes as Bitcoin struggles to maintain momentum above the $80,000 mark, with ETF outflows further pressuring market sentiment. The sales have drawn attention due to BlackRock's influential role in the Bitcoin ETF sector, where institutional movements can significantly impact short-term market dynamics. The recent ETF outflows have heightened worries about institutional investors' confidence, as several large investors appear to be reducing their exposure to risk assets amid increased market volatility. This development has also affected Ethereum and major altcoins, which have seen declines during the same period. As Bitcoin continues to trade below the critical $80,000 level, traders remain cautious about potential further institutional selling in the near term.