Cathie Wood-led investment firm Ark Invest made significant portfolio adjustments on Wednesday, purchasing $18.4 million worth of Coinbase Global shares while simultaneously selling $29 million worth of Robinhood shares. According to its Wednesday trading disclosure, Ark Invest acquired 111,799 Coinbase shares across its Innovation (ARKK), Next Generation Internet (ARKW), and Blockchain and Fintech Innovation (ARKF) ETFs. The purchases were valued at roughly $18.4 million based on today's closing price, representing the largest single-day COIN buy from Ark in recent months. Elsewhere in the same round of portfolio adjustments, Ark bought 236,759 shares of Block Inc. worth about $17.2 million while selling 275,572 shares of Robinhood Markets worth nearly $29 million.
The trading activity occurred as Coinbase closed down 2.57% at $164.92 on Wednesday, extending the stock's one-month decline to 12.95%. Robinhood gained 8.78% to close at $105.20, posting nearly a 9% gain on the session. Block also finished lower, slipping 2.46% to $72.84. As reported by The Block, these movements reflect broader market dynamics affecting the cryptocurrency and fintech sectors, with Ark effectively buying weakness in COIN and selling strength in HOOD.
According to Ark's disclosure, Robinhood remains ARKK's fourth-largest holding with a weighting of 4.87%, or $339.6 million, even after Wednesday's sale. Coinbase is now ARKK's eighth-largest position at 3.71%, or $258.6 million. The firm also purchased 236,759 shares of Block Inc. worth about $17.2 million during the same trading session. As of mid-June 2026, Coinbase represented approximately 3.8% of certain Ark ETFs, while Robinhood comprised around 5.02%.
The latest purchases come days after Coinbase unveiled several new products and platform upgrades that have strengthened Ark's confidence in the crypto exchange. On Tuesday, the company announced plans to introduce tokenized stocks, allowing users to buy, hold, and trade blockchain-based versions of U.S. equities. Coinbase also revealed an AI-powered advisor and a unified liquidity system connecting its U.S. and international spot crypto and derivatives markets. Following these announcements, Benchmark Equity Research reiterated its Buy rating on Coinbase, citing the product rollout as reflecting the company's evolution beyond a crypto trading venue into broader financial and onchain infrastructure provider.
This latest trade represents a continuation of Ark's familiar pattern of portfolio rotation between the two fintech giants. In March 2026, Ark purchased $4 million in Coinbase shares and $12 million in Robinhood during another stretch of market softness. In June 2025, the firm picked up $1.3 million in Coinbase and a much larger $24.4 million slug of Robinhood stock. The current trade effectively flips the script on the Robinhood side, with Ark now taking chips off the table following a strong run, while adding to Coinbase at what it views as a better entry point. This follows Ark's recent pattern of adding crypto-focused exchange operators amid stock weakness, including $4.4 million worth of Bullish shares in May after the exchange's stock declined for five consecutive sessions.
