In Paris, the corn contracts were able to build on the gains of the previous days and ended trading in the profit zone. For the June date it went up 3.75 euros/ton to 326.25 euros/ton. On the Chicago Stock Exchange, futures found no consistent direction. The front dates gave way under the pressure of the oil markets. Back dates rallied throughout the day to close with slight gains. Even the latest export news didn't help the bulls to lead. Traders fear that demand for corn for ethanol production could fall again as oil prices ease, dampening investors' buying mood.
Source
VR Agrarberatung