JPMorgan analyst Christina Brathwaite downgraded WW, the company formerly known as Weight Watchers International, to Underweight from Neutral and cut her price target for the shares to $25 from $37. The stock closed Friday up 40c to $30.28. Channel checks indicate that WW app daily active users continue to contract in the most important period of the year, Brathwaite tells investors in a research note partially titled "Losing More than Pounds." Its U.S. daily active users trends have worsened, contracting 35% year-over-year quarter-to-date through February 15, according to SimilarWeb, the analyst points out. Further, WW app reviews have become increasingly negative since fall of 2018, with users complaining of significant technical issues, Brathwaite adds. Lastly, the analyst believes competitors Noom and Diet Doctor continue to gain traffic share.