 Analysts downgrades for Tuesday, January 28th: AbbVie NYSE:ABBV was downgraded by analysts at ValuEngine from a hold rating to a sell rating. Acadia Healthcare NASDAQ:ACHC was downgraded by analysts at ValuEngine from a sell rating to a strong sell rating. Align Technology NASDAQ:ALGN was downgraded by analysts at BidaskClub from a buy rating to a ... 