Subscribers to Schaeffer's Weekend Trader options recommendation service received this CF commentary on Sunday night, along with a detailed options trade recommendation -- including complete entry and exit parameters. Learn more about why Weekend Trader is one of our most popular options trading services. CF Industries Holdings, Inc. (NYSE:CF) stock’s lower rail held its connecting May and January lows, as a confluence of its 20-, 50-, and 200-day moving averages provided support. The shares are now above t ...