ARK Invest purchased approximately $21.5 million worth of stocks in Coinbase, Circle Internet, and Bullish last Friday, marking its first simultaneous acquisition of these three companies since mid-December last year. The investment firm acquired 129,400 shares of Circle valued at about $9.2 million, 42,200 shares of Coinbase worth approximately $9.15 million, and 88,500 shares of Bullish totaling around $3.17 million. This move aligns with ARK's strategy of buying on dips, as Bitcoin experienced a nearly 6% decline last week.