 BidaskClub downgraded shares of Luminex NASDAQ:LMNX from a strong-buy rating to a buy rating in a research note released on Friday, BidAskClub reports. Separately, ValuEngine cut shares of Luminex from a buy rating to a hold rating in a research report on Friday, May 1st. Shares of LMNX stock opened at 38.90 on Friday. The ... 