Jim Cramer says investors are powering the December rally with conflicting bets

"With a vaccine glut on the horizon, at-home testing [and] the possibility of a stimulus deal in Washington ... I'd worry not being bullish enough," the "Mad Money" host said.

source https://www.cnbc.com/2020/12/15/jim-cramer-investors-are-powering-the-december-rally-with-conflicting-bets.html