Oprah gives Weight Watchers investors their best day ever
October 19, 2015 at 13:26 PM EDT
Weight Watchers stock is on track for the biggest one-day percentage gain in its 14-year history, after Oprah Winfrey took a 10% stake in the company, but it still has more work to do before it sheds its long-term downtrend and catches up on its peers.