Why American Airlines, Idera Pharmaceuticals, and RH Holdings Slumped TodayFrom a scuttled merger to tariff troubles, see why shares of these three companies fell hard today.

From a scuttled merger to tariff troubles, see why shares of these three companies fell hard today.http://feeds.foxbusiness.com/~r/foxbusiness/latest/~3/GGXmHIWGs10/why-american-airlines-idera-pharmaceuticals-and-rh-holdings-slumped-today