The CBOT ended a volatile week with an exceptionally volatile day that included wheat settling 75 cents lower at the bottom of its expanded daily trading limits. Corn and soybeans posted heavy losses as well after Russian President Putin agreed to meet with the Ukrainian government. The news was taken as a sign of a change in Russia’s aggressive approach and sent global markets quickly reversing this week’s trade. Crude oil and grain markets fell sharply while stocks rallied, and the U.S. dollar gave back 59 bps of this week’s gains.  The CBOT’s latest open interest data suggests Thursday’s rally was largely due to liquidation of short positions amid an intensifying short squeeze. Open interest in corn fu...