Cathie Wood's Ark Investment Management has announced its stake in OpenAI, the parent company of ChatGPT, marking a significant move for the investment firm known for its focus on innovative technologies. The investment in the artificial intelligence company is facilitated through a special purpose vehicle (SPV) into Ark's closed-end venture fund, ARKV. The Ark Invest Venture Fund offers exposure to high-profile companies such as SpaceX, Tesla, and X Holdings (Twitter), with OpenAI representing approximately 4% of the ARKV fund, and Anthropic, another entity focused on foundational model technologies, constitutes about 5% of the fund.