According to Wednesday's disclosed information, Cathie Wood's Ark Invest has acquired $21.3 million worth of Robinhood Markets stock through two ETFs. The Ark Innovation ETF (ARKK) bought 131,049 shares of Robinhood on Wednesday, while the Ark Next Generation Internet ETF purchased 36,440 shares. As of yesterday, Robinhood's stock represented approximately 19% of both ETFs' total holdings. Throughout this year, Ark Invest has been increasing its positions in cryptocurrency-related stocks by acquiring shares of Robinhood, Bullish, Coinbase, and BitMine, the Ethereum treasury company. On Wednesday, Robinhood's share price fell by 3.5%, closing at $127.22.