Corn price action is down ¼ cent to a penny so far on Tuesday morning trade. Futures posted Monday gains of 1 ¼ to 3 ¼ cents across the board. Open interest was down 2,561 contracts on Monday, with 28,719 contracts exiting May.  The CmdtyView national average Cash Corn price was up 3 1/2 cents at $4.15 1/4. NASS Crop Progress data showed the US corn crop at 11% planted as of Sunday, which was 2% ahead of the 5-year average pace of 9%. The crop was also 4% emerged, which is 2 percentage points faster than ...