Shah talked about the market sell-off with Stuart Varney on Fox Business earlier this week. After discussing whether now is the time to be buying stocks, he took a look at several specific companies. Tesla Motors Inc. (Nasdaq: TSLA), Alibaba Group Holding Ltd. (NYSE: BABA) and Chipotle Mexican Grill Inc. (NYSE: CMG): Which are buys and which are scary? Shah lets us know. Click here.