Is it legal to value your account in such a way that is completely way off actual liquidation values? For example, the way IB calculates account value is completely f***ed up. If you are holding silver march 04 contracts right now, the account management software will show that they are worth 4.83 (basically the spread between the bid and ask of the dec 03 contract, which no one is trading). This is far below the market value of either contract at the moment and can play havoc with account management automatic liquidations. The new manner in which they calculate account value (implemented a few months ago) is obviously inappropriate -- is there any recourse to this? Say you are liquidated out of a position due to faulty valuation software -- what can you do?