Chicago Board of Trade corn futures were firm early on Wednesday on a short-covering rebound and on spillover support from gains in soy, traders said.
At 10:23 am CDT (1523 GMT), CBOT corn was unchanged to 1-1/4 cents per bushel higher. December was up 1 at $2.04-1/4 per bushel.
Pit sources said Rand Financial and Calyon Financial each bought 100 December and Prudential Securities sold 1,0000 March.
The market was due for a bounce with the nine-day relative strength index for December corn closing at 25 on Tuesday. An RSI of 30 or below is one indicator of an oversold market.
But prices were seen keeping range-bound, hovering near contract lows amid outlooks for US corn supplies to expand at harvest continues.