
Those factors have reduced Starz's share of Netflix streaming viewership in the U.S. to 8 percent, according to Netflix. The rising cost for Internet streaming rights is one of the reasons that Netflix raised its prices for people who want to rent DVDs through the mail and stream video. Starz's decision to end the talks with Netflix underscores the escalating tensions with pay-TV services that view Netflix's popularity as a competitive threat. The falling out with Starz added to the worries of Netflix investors already fretting about the higher prices driving away subscribers. Netflix's stock plunged $19.97 to $213.30 in extended trading Thursday, after the announcement by Starz.