MicroStrategy (MSTR)'s stock price has fallen about 10%, echoing the pullback trend of Bitcoin, but its perpetual fund index STRC has boosted market bullish sentiment. STRC has risen for four consecutive days, returning to the key $100 level, which directly drove MSTR's Bitcoin purchases. Additionally, the dividend yield has increased to 11.5%, and a large number of institutional holdings, including Vanguard's 8.12%, further strengthened this momentum, leading MSTR to have purchased 4,277 Bitcoins this week. It is expected that by Monday, this number could reach 8,000 Bitcoins, which may support Bitcoin prices amid increasing overall market uncertainty.