I am under the impression that if you were to buy 5,000 bushels of Dec corn on paper the value of that corn would be something a little over $34,000 at todays close but you would only have to have something like $5,000 (I don't know if that amount is anywhere close to correct) sitting in an account to service the ownership of that $34,000. If corn were to go down say 50 cents the value of the contract would be $2500 less and they would take that out of your account. If you wanted to maintain your position, you would have to put more money in the account. Am I anywhere close to right? If this is the way it works, I don't see why it would be outside the realm of possibility. The crystal ball would sure help though.