Is there any FCM that offers a "cash sweep" feature similar to that used by brokerage firms registered with SEC? Under this scheme, all cash balances are moved to an FDIC-insured bank account, thus providing an extra level of security and insurance up to $250,000 in case of brokerage firm's insolvency. Alternatively, any FCM that allows collateral other than cash, such as: - a letter of credit from a bank, - cash/securities in the client's brokerage account "blocked" for the benefit of FCM (like in an escrow account), - gold certificates/physical gold etc.? It is stunning that after so many notable FCM failures (MF Global etc.) the industry has still not come up with SIPC-like protection for clients' assets.