Liquidity is a two-way street. Lack of sellers is just as bad as a lack of buyers... especially when you're selling short and need to close out a position.
This should have an interesting effect on food prices in the next few months.
Matt Pierce, Futures International Inc. says there is an absolute run on spreads right now. "It's the scariest thing I've ever seen on this floor," Pierce says.
Source: Panic strikes the wheat market