Corn futures posted losses of 3 to 4 cents across the front months on Friday, with December slipping back 2 cents this week. The CmdtyView national average Cash Corn price was down 3 3/4 cents at $3.78. Friday afternoon’s Commitment of Traders report indicated managed money adding back 14,624 contracts to their net short position in corn futures and option as of September 23. That took their net position to -94,675 contracts, mainly on long liquidation. Commercials trimmed back there at net short position ...