CBOT - So. American Soybean Futures-Revised Trdg. Hours and Side-by-Side Trading

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South American Soybeans

Education Series: Using Options to Hedge Commodity Price Risk

CBOT Agricultural Product Hours are Expanded on CME Globex

Regularity Renewal for the Period Beginning July 1, 2007

So. American Soybean Futures-Revised Trdg. Hours and Side-by-Side Trading

As previously announced, the following changes will be effective for CBOT® South American Soybean futures beginning Monday, May 15, 2006:

- e-cbot® electronic trading hours will be 6:31 p.m. to 6:00 a.m. AND 9:00 a.m. to 1:15 p.m. (Chicago time).

- Open auction trading hours will be 9:00 a.m. to 1:15 p.m. (Chicago time).

Ticker symbols for South American Soybean futures are ZK for e-cbot and BS for open auction.

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