1. In the Balances section of the TWS Account Window, this is:Securities: Cash recognized at the time of settlement minus the purchases at time of trade, commissions, taxes, and fees.Stock Settlement – Trade date + 3 days.Options Settlement – Trade Date + 1 day. Commodities: Same as for securities. Futures Settlement – Trade date + 1 day.
    2. In the Market Value – Real FX Position section of the TWS Account Window, this is:

Total Cash that has settled + futures P&L.