There is a User Guide here, which gives all the definitions: http://www.interactivebrokers.com/php/webhelp/webhelp.htm You can also switch on the Help button form the Account Management window. This will also give you the definitions when you move your cursor over the name.
I had looked at the user guide prior to posting the message. This is the definition from the user guide. Net liquidation: total cash value + stock value + securities option value + bond value Equity with loan: total cash value + stock value + bond value + (non-U.S. & Canada securities value) This is the definition from the Account help. Net liquidation: total cash value + stock value + options value + bond value Equity with Loan: margin account: total cash value + stock value + futures option value + bond value Looks like net liquidation value is the usual equity value that other brokers give you. What is the purpose of the equity with loan value calculation and which one is the correct one? Thanks.
Equity with Loan Value is used for margin purposes. Your available funds, excess liquidity and buying power calculations use the Equity with Loan Value. Use the definition from your account window as that will be for your account. Net Liquidation value is your total account worth.