But the same hand that gives can also take away. Last week, Nvidia submitted another regulatory filing that showed it had completely exited its stake in Soundhound AI. Just as investors viewed Nvidia's initial position in Soundhound as a vote of confidence, they saw the sale of all its shares as a vote of no confidence.

Nvidia’s latest 13-F filing also indicated that it sold its stake in Serve Robotics, and shares of the self-driving-technology company were also sliding Friday.

A 13F itemizes the individual stocks money managers bought and sold during the most recent quarter. Investors can use these filings as tools to uncover where the "smart money" is looking for opportunity.