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.

SoundHound AI stock plummeted 23.1% to $11.72 after Nvidia (NVDA) sold its entire stake in the AI-powered voice technology company. Nvidia previously held 1.7 million shares worth over $8 million, but its sudden exit led to a market sell-off,

Shares of AI-driven voice recognition expert SoundHound AI (NASDAQ:SOUN) were crushed after Nvidia (NASDAQ:NVDA) revealed it had completely dumped its stock. It was hardly the love note investors were expecting to receive on Valentine’s Day.

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.