Shares of Tivity Health (TVTY) are sliding after the company announced that it is acquiring Nutrisystem (NTRI) in a cash and stock deal valued at $47 per share. Despite the selloff,… To see the rest of the story go to thefly.com. (See Story Here):(https://www.thefly.com/permalinks/entry.php/id2834730/-Tivity-plunges-as-investors-digest-news-of-Nutrisystem-acquisition)