Ark Invest has expanded its investment portfolio by acquiring additional shares in several prominent cryptocurrency-related companies. On January 31, Ark Invest's fund ARKF purchased 7,565 shares of Coinbase, 23,420 shares of Circle, and 35,360 shares of ARK 21Shares Bitcoin (ARKB). Additionally, the fund acquired 64,211 shares of Bullish, further solidifying its position in the crypto market.