Soybean futures finished mixed on Wednesday, as record high South American production offset support from a weaker U.S. dollar. The market saw an 13.25 cent range, with the March contract reaching 1126'6. In the options market, open interest added 2,600 contracts to the put side, maintaining a put-heavy profile. Corn futures remained steady within a three-week trading channel, with the March contract touching a low of 425'2 before recovering. Despite a slight decrease in global stock estimates, corn futures faced light pressure as traders bought 3,000 puts. Wheat futures closed higher, supported by a lower U.S. dollar making exports more attractive. March Wheat futures rose 11.75 cents to 540'0 as the market continues to consolidate in its recent range.