Weight Watchers Surges as Oprah Ads Lure Dieters to Programs

  • Company forecast earnings for 2017 that exceeded estimates
  • Diet competitor Nutrisystem posted strong results this week

Weight Watchers International Inc. food products in New York on Feb. 23, 2016.

Photographer: Michael Nagle/Bloomberg
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Weight Watchers International Inc., the diet company backed by Oprah Winfrey, surged on Wednesday after the company issued a better-than-expected profit forecast for 2017 and added subscribers for the fourth consecutive quarter.

The shares jumped as much as 38 percent to $19.86 in New York, the biggest intraday increase since November 2015. The stock had already gained 26 percent this year through the close of trading Tuesday.