Stocks: Real-time U.S. stock quotes reflect trades reported through ... Sources: FactSet, Tullett Prebon Commodities & Futures: Futures prices are delayed at least 10 minutes as per exchange ...

A farmer combines his corn field in Iowa. (Jerry Mennenga/Zuma Press) Corn and wheat prices are tumbling after China slapped retaliatory tariffs on some American-made goods, pushing farmers into ...