The CRB Index, as of July 12, 2005 known officially as the Reuters/Jefferies CRB Index, is a basket of commodities which is intended to provide information as to the overall direction of commodity prices in general. I'd hunt around in whomever you get your data from and see if any of the above helps. I don't trade it myself but the NYBOT uses the symbol CR.
Thank you both. I checked the website and found this NYBOT website announcement. ******** Please be advised that as of the close of business on June 17, 2005, all outstanding open interest in the Reuters CRB futures and options contracts has been converted to the new âContinuous Commodity Indexâ (CI). ******** Thanks !