Weight Watchers Stock Spikes After Debut Of Winfrey's New Advertising Campaign

(RTTNews) - Weight Watchers International Inc. (WTW) shares soared over the past two days after the company launched its new advertising campaign featuring media mogul Oprah Winfrey.

The shares of weight loss company jumped 19 percent or $3.68 to $23.05 on Wednesday, that follows a 7 percent gain on Tuesday, when Winfrey posted the video. But, in after hours, the stock marginally dropped by $0.06 or 0.26% to $22.99.

The celebrity posted a video to her Twitter account about using Weight Watchers to lose weight. "Are you ready?" she asks in the clip. "Let's do this together."

"If not now, when? I feel that way and I know that millions of other people feel that way," Winfrey said in the advertisement.

Winfrey, 61, announced her partnership with Weight Watchers in October, saying she would buy 10 percent of the stock and join the board.