Chicago corn futures jump 2.94% to $5.43 a bushel

The move is broad-based rather than corn-specific, with wheat, soybeans and livestock all participating, which points to a macro or sector-wide driver rather than a single-crop story. That matters for anyone tracking ag as an asset class, since it suggests the complex is trading as one rather than on individual supply-demand news. Whether the grains subindex holds above this level, or gives it back, is the open question.