Corn futures edged higher on Tuesday, supported by robust weekly export sales data showing U.S. shipments up 18% month-over-month. The May CBOT contract traded at $4.89, with chart resistance near $4. As Starbucks Cuts Jobs and Closes Stores, Should You Buy, Sell, or Hold SBUX Stock? Just remember, grain doesn’t trade in a vacuum. October often brings macro markets into play and this year is no different. The U.S. dollar has slipped lower, crude oil is under pressure, and equities have shown signs of fatigue. For funds, these outside signals often matter more than the day-to-day balance sheet shifts in corn, soybeans or wheat. Traders in corn futures saw heightened volatility as the March contract tested $4.85 support and rebounded sharply to $4.