UPDATE: Evercore Downgrades Facebook Noting Youth Engagement & WhatsApp Monetization Concerns

In a report published Thursday, Evercore analyst Ken Sena downgraded Facebook (NASDAQ: FB ) from Overweight to Equal-Weight and lowered the price target from $70.00 to $60.00. Sena noted that although opportunity for higher ad pricing remains, "the cost of delivering increased engagement that is higher than we are comfortable