Subscribers to Schaeffer's flagship Options Advisor publication more than doubled their money with our recommendation to buy the ZTO Express (Cayman) Inc (NYSE:ZTO) February 21 put. At the time of our recommendation on Dec. 21, the logistics stock had just crossed below $21.50 that was an area of resistance in 2018 and 2019, as well as a potential area of support. ZTO also gapped lower after the company's mid-November earnings report, with its 52-week low in December coming amid implied volatility (IV) that ...