SPREADS Jan crush continues to firm, trading up to 96.24c/bu as oilshare corrects again today, trading down to 34.13%.   Volumes in corn continues to be found comprised mostly of spread activity, with December corn open interest down 36,550 contracts yesterday vs. increased of 37,125 March.  December corn open interest now stands at 565,700 mt vs. March at 477,177 contracts.   Dec/March corn narrows into 8 1/2c as basis remains very firm.  Jan open interest increased on selling activity suggesting that new shorts are coming into this market on technical weakness, with Jan and March open interest rising by 3100-4400 contracts, respectively.   Jan/March beans trades from 13 1/4c out to 13 3/4c.  &...