WW - WW -8.5% as Nutrisystem launches custom plans December, 26 2019 01:49 PM WW International Inc. WW International (NASDAQ:WW) drops 8.5% after Nutrisystem (TVTY -1.4%) launches new personal weight loss plans.More news on: WW International, Inc., Tivity Health, Inc., Consumer stocks news, Stocks on the move Read more ...