Firefighters At The MH17 Crash Site in Ukraine

Firefighters At The MH17 Crash Site in Ukraine

Alexander Khudoteply/AFP via Getty Images

The stock gauge posted the worst monthly drop in July since 2012 as the U.S. and the European Union escalated sanctions targeting Russia’s $2 trillion economy after the downing of Malaysia Airlines passenger jet MH17 on July 17 over Ukrainian territory controlled by pro-Russian insurgents.