Weight Watchers Continues Surging, Investors Loving Oprah's Latest Advertisement

Shares of Weight Watchers International, Inc. (NYSE: WTW) surged on Tuesday after the company's minority-owner, Oprah Winfrey, was featured in a new advertisement.

"This is the joy for me," Winfrey said in her Weight Watchers commercial, which was released before the market open. "I love bread... I... love... bread. I now just manage it so I don't deny myself bread every day. I have bread every day."

"That's the genius of this [Weight Watchers] program," she continued. "I lost 26 pounds and I have eaten bread every single day."

Eat bread. Lose weight. Whaaatttt? #ComeJoinMe https://t.co/jUgpk9ToXY https://t.co/xtnB53EwSf

— Oprah Winfrey (@Oprah) January 26, 2016

Winfrey's tweet to her more than 30 million followers gave Weight Watchers' stock a boost. Shares opened for trading at $11.18 after closing at $11.12 on Monday. By mid-afternoon, the stock was trading at $13.42, up more than 20 percent on the day.