[Ark Invest Purchased $39.4 Million Robinhood Stock Yesterday, Reduced $6.1 Million of Its Own Bitcoin ETF] According to The Block, Cathie Wood's Ark Invest bought approximately $39.4 million worth of Robinhood stock on April 29, while selling approximately $6.1 million of its own spot Bitcoin ETF, Ark 21Shares Bitcoin ETF. Robinhood's stock price fell 13.2% to close at $71.20 on Tuesday after reporting a weak Q1 earnings report. On the same day, Ark 21Shares Bitcoin ETF saw a net outflow of $30 million, while U.S. spot Bitcoin ETFs collectively experienced a net outflow of $137.8 million.