Why GSX Techedu Stock Was Falling This Morning

Shares of Chinese education company GSX Techedu (NYSE: GSX) were falling on Monday, after prominent research firm Muddy Waters revealed it had taken a short position in the stock. As of 11:10 a.m. EDT, the stock was down 8%. But it was down 16% in early trading.

Even after today's stumble, GSX Techedu stock is still up for the year and easily beating the market. Its year-to-date outperformance might be contributing to investors' jitters.