Compass Minerals is down -5.5%, or -81c to $13.74. Published first on TheFly – the ultimate source for real-time, market-moving breaking financial news. Try Now>> See today’s best-performing stocks on TipRanks >> Read More on CMP: Compass Minerals falls -6.9% Compass Minerals will not secure USFS contract for aerial fire retardants Compass Minerals downgraded to Hold from Buy at Loop Capital Compass Minerals downgraded to Neutral from Buy at Loop Capital Compass Minerals Appoints Gordon Dunn as New COO