Robinhood stock popped this week on news that European users could trade "tokenized" stock in private companies. OpenAI distanced itself from the plan.

Robinhood Markets Inc. shares fell after OpenAI advised caution to customers taking advantage of the brokerage’s offer for access to equity “tokens” for the closely held company led by Sam Altman.Most Read from BloombergNYC Commutes Resume After Midtown Bus Terminal Crash ChaosStruggling Downtowns Are Looking to Lure New CrowdsMassachusetts to Follow NYC in Making Landlords Pay Broker FeesForeign Buyers Swoop on Cape Town Homes,

Key Takeaways ChatGPT maker OpenAI distanced itself from the "stock token" project Robinhood announced earlier this week.OpenAI said tokenized versions of its stock are not official equity in the private company.