Fox Corp.'s stock earned an upgrade on Wednesday thanks to the sports rights cost "clarity" provided by the recent NFL rights renewal andits role as "a potential participant in media M&A." Wells Fargo analyst Steven Cahall upgradedthe shares of Fox, led by CEO Lachlan Murdoch, from "underweight" to "equal weight" and his price target by $14 to $41 writing in a report: "We've historically been bearish on sports as rights tend to grow in excess of linear revenues, and Fox has been the media stock