www.forbes.com/sites/mikeozanian/2017/09/23/nfl-broadcasting-stocks-slump-as-protests-rise-and-tv-ratings-slump/#142f2d3d4eec
During the past month the overall stock market is up more than 2% but shares of companies that broadcast NFL games--Comcast, Walt Disney, Fox, CBS--are all down between 1% to 8%.
The NFL is now a hotbed of protests--a carry over from last year that began when San Francisco 49ers quarterback Colin Kaepernick began protesting during the National Anthem, to protests this year by those who feel Kaepernick, who is without a team, is being unfairly treated by by the league, to a stronger push by some players for an increase in NFL social activism.
Towards the end of last season some felt the NFL's ratings dip would be temporary and therefore would not ultimately hurt the networks by forcing them to reimburse advertisers. Instead, the opposite has happened.
