Available funds(AEE) are used to determine whether new positions may be opened. Opening a position refers to trading activity such as buying long or selling short. Please note that available funds is not the same as available cash. It is calculated using indicators such as total assets, options holdings market value, locked funds, and initial margin. When the available funds are greater than 0, it means the account may open new positions worth up to 4x the available funds.
Securities Segment：AEE = ELV - IM - locked EE
Futures Segment：AEE = NLV - IM - locked EE
ELV = Equity with Loan Value, summation of the assets available in securities segment;
*For cash accounts, ELV = security segment cash balance
*For margin accounts, ELV = security segment cash balance + total market value of securities - total market value of options
NLV = Net Liquidity Value, summation of the assets available in futures segment;