Shares of Comfort Systems (FIX) have gained 20.5% over the past four weeks to close the last trading session at 397.54,buttherecouldstillbeasolidupsideleftinthestockifshort−termpricetargetsofWallStreetanalystsareanyindication.Goingbythepricetargets,themeanestimateof512.60 indicates a potential upside of 28.9%.The mean estimate comprises five short-term price targets with a standard deviation of 48.99.Whilethelowestestimateof465 indicates a 17% increase from the cur ...