United Homes Group stock plunges after Nikki Haley, directors resign
Cathie Wood’s ARK ETFs made notable adjustments in their portfolios on Friday, October 17, 2025, with a mix of buy and sell activities that reflect the funds’ dynamic investment strategies. Among the most significant moves was the purchase of 9,386 shares of Deere & Co (NYSE:DE), split between the ARKQ and ARKX ETFs, amounting to a total investment of approximately $4,290,903. This trade marked an increase in the funds’ stake in the agriculture and construction machinery giant, following a smaller purchase earlier in the week.
On the sell-side, ARK reduced its position in Rocket Lab Corp (NASDAQ:RKLB) by selling 66,070 shares across the ARKQ and ARKX ETFs, with a total value of about $4,426,690. This move comes after a series of sales in Rocket Lab shares by ARK throughout the past week, signaling a potential shift in the funds’ outlook on the aerospace manufacturer.
Another significant buy was the acquisition of 725,281 shares of ATAI Life Sciences NV (NASDAQ:ATAI) through the ARKG ETF, totaling roughly $3,974,539. This investment in the biotech company suggests ARK’s continued interest in the healthcare sector.
Conversely, the funds sold 72,537 shares of Adaptive Biotechnologies Corp (NASDAQ:ADPT) valued at $1,252,713, and 71,47 shares of Natera Inc (NASDAQ:NTRA) at $1,290,319. Both trades were executed through the ARKG ETF, indicating a rebalancing of ARK’s biotech holdings.
Smaller trades included the sale of 13,758 shares of Quantum-Si Inc (NASDAQ:QSI) for $349,473 and the purchase of 16,371 shares of Pony AI Inc (PONY) at $334,295 through the ARKQ ETF. The latter represents a continuation of ARK’s investment in the autonomous driving company, having bought shares in the previous days.
ARK also sold 25,177 shares of SoFi Technologies Inc (NASDAQ:SOFI) through the ARKF ETF, amounting to $669,708, and 14,901 shares of Tempus AI Inc (TEM) for $1,356,289 through the ARKG ETF.
These daily trades are part of ARK’s active management approach, with the funds constantly adjusting their portfolios to align with Cathie Wood’s forward-looking investment thesis. Investors who follow ARK’s movements often look for patterns in these trades to understand the funds’ strategic direction. The recent accumulation of shares in companies like Deere & Co and ATAI Life Sciences, paired with the divestment from companies such as Rocket Lab, provides insight into where ARK sees potential growth and where it is taking profits or cutting losses.
This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.