CoreWeave, Circle and Tesla: what stocks Cathie Wood bought and sold last quarter
Cathie Wood's investments are spread across most key sectors, but their concentration in individual stocks remains extremely high

Cathie Wood's extreme portfolio concentration can produce both large gains and large losses / Photo: linkedin.com/in/catherinedwood/
Funds managed by Cathie Wood, known for her aggressive bets on breakthrough technologies, saw their combined asset value drop from $16.8 billion to $15.1 billion in the fourth quarter of 2025, Seeking Alpha reported, citing reports from management investment firm ARK Investment Management (ARK Invest). The concentration of her portfolio remains extremely high, with the three largest positions accounting for 17% of funds and the top five accounting for about 25%.
What Cathie Wood was buying.
According to ARK Invest's quarterly reports, exchange-traded funds under its management opened new positions in eight companies in October-December 2025. The largest purchase was a block of securities of WeRide robotaxi service - more than 2 million units for $17.4 million (0.12% of the portfolio). The second largest acquisition was Netflix: ARK Invest funds bought 165.7 thousand shares of the streaming giant (0.1% of the portfolio), spending $15.5 million. The first three newcomers closed the tiny biotechnology company Tharimmune: ARK Invest bought 3.25 million shares for $ 9.85 million, allocating for this position 0.07% of the portfolio, according to the analytical service Whale Wisdom.
In addition to the new purchases, Wood has increased stakes in more than 110 companies already in its portfolio. The most aggressive move was quadrupling its position in cloud provider CoreWeave, GuruFocus notes. By Whale Wisdom's count, ARK Invest bought nearly 1.5 million shares, bringing the stake to 1.92 million securities with a total value of $137.8 million. Another major investment was the purchase of an additional 1.17 million shares of stablecoin issuer Circle Internet Group. The stake grew by 39.6% to 4.14 million securities, and its market valuation reached $328.4 million.
What Cathie Wood was selling.
Wood fully exited the equity of social media platform Reddit, which held 0.22% of the portfolio, in the fourth quarter of 2025. Another notable decision was the liquidation of a position in securities of 3iQ Ether Staking exchange-traded fund (0.16% of the portfolio). In addition, ARK Invest got rid of securities of Ibotta cashback service, fintech platform BILL, insurance software developer Sapiens, cryptocurrency fund 3iQ Solana Staking, biopharmaceutical firm Kamada and advertising platform Nexxen.
Wood has also reduced its equity presence in several dozen companies, including ARK's largest holdings. According to Whale Wisdom, ARK Invest reduced its stake in electric car maker Tesla by 18.8%, e-commerce platform Shopify by 17.4%, streaming service Roku by 20%, data analytics software developer Palantir Technologies by 19.9%, chipmaker AMD by 15.8%, and online broker Robinhood by 4.2%.
The biggest bets
At the end of 2025, Cathie Wood's funds had a combined portfolio of about 200 positions. Their largest holdings were Tesla (8.7% of the portfolio), Shopify (4.25%), Roku (4.24%), Coinbase (3.82%) and Palantir Technologies (3.81%). The investments are spread across 10 out of 11 key sectors: technology, healthcare, consumer staples, communication services, financials, industrials, energy, utilities, consumer staples and commodities, states GuruFocus.
What is Cathie Wood known for?
Cathie Wood rose to global fame in 2020 when her flagship ARK Innovation exchange-traded fund grew 2.5 times in one year to become the best-performing ETF on the market. Wood's strategy has been called the direct opposite of Warren Buffett's value investing: while the "Oracle of Omaha" looks for undervalued companies, the founder of ARK Invest readily invests in unprofitable, large-cap companies with the expectation that they will be successful in the future.
This article was AI-translated and verified by a human editor
