An IB account enabling to trade options and futures is divided in two parts : " Securities " and " Commodities ". I looked at the huge doc of TWS (980 pages) but could not find a definition for the meaning of those terms at IB's. For example, I think that "Options on indice" are included in the " Commodities " part. But in general, who can tell me exactly, in an IB account, # which products are eligible to the " Securities " part ? # which products are eligible to the " Commodities " part ? And... it is a bit urgent: I have a written presentation to do. Thank you for you help.