Corn wave count.
The dynamic collapse in corn with index funds in complete liquidation mode is characteristic of wave C. The 4th wave low did not occur at 682, which in hindsight was essentially the A wave with the B wave bounce to the 78% Fibonacci number of 749 before the current implosion.
Wave C with extensions measures 1.382% of the A wave, which measures 646. This implies significant support near limit down today.
We're going to watch for a buy in December corn in the 643-648 range with a stop below the 200-day MA (purple line), currently 628. Would likely put the stop at 619 and look away.