Chicago corn futures fall 1.58% to $4.6675 a bushel

The move is less about corn itself than about the broad grains complex softening together, with the Bloomberg Grains Subindex pressing toward its August low — a level that now acts as the nearest reference point for whether this is routine pullback or the start of a deeper slide. The split within softs is the more telling signal: coffee and cocoa rising while grains and soybeans slip suggests money rotating out of field crops rather than exiting agricultural commodities wholesale. Whether the grains subindex holds above that August floor is the open question worth watching.