Suntrust analyst Bob Peck downgraded Twitter Inc (NYSE:TWTR) from Buy to Neutral with a price target of $18, marking a decrease of 0.4% from current levels.

The analyst feels that Twitter is having trouble with “user growth and engagement.” He comments that Twitter will soon be unable to increase its monetization with limited new product introductions. Furthermore, Peck states that increasing competition, especially from Snapchat, and a “challenging advertising background” will prove to be big challenges for Twitter.

According to TipRanks, Peck has a success rate of 59% with an average return of 5.8% per recommendation.