Wall Street knows the power a short seller or a market pundit can have over investor sentiment. But what about a reality star? Or a pop queen?

Just a few weeks after Kylie Jenner sent Snap Inc. (SNAP) stock reeling 8% with a single tweet, Rihanna served up another sucker punch to shares, ultimately throwing gas on the flames that have sent Snap stock down 15% in a month.

But investors shouldn't be surprised that these offhand comments throttled Snap shares. The company acknowledged that very risk in its 10-K last month, essentially saying Snap could get put through the wringer if social media influencers turn their backs on its Snapchat application. If you invest in Snap stock without reading its annual report, you could be one of the dumbest on Wall Street.

 

Want to keep up with everything else dumb on Wall Street? Follow along on TheStreet's YouTube channel for more.

More from Video

Jim Cramer: 4 Stocks Could Get Throttled By a 'Knock Down Drag Out' With China

Jim Cramer: 4 Stocks Could Get Throttled By a 'Knock Down Drag Out' With China

Trump Threatens More Tariffs and 4 Other Stories to Watch Tuesday Morning

Trump Threatens More Tariffs and 4 Other Stories to Watch Tuesday Morning

Jim Cramer's Investing Rule 13: No Woulda, Shoulda, Couldas

Jim Cramer's Investing Rule 13: No Woulda, Shoulda, Couldas

REPLAY: Jim Cramer on Tariff Worries, Oil, Alphabet and Centene

REPLAY: Jim Cramer on Tariff Worries, Oil, Alphabet and Centene

Video: Athens Stock Exchange CEO on What's Next for Greece's Debt Woes

Video: Athens Stock Exchange CEO on What's Next for Greece's Debt Woes