What is RegT Buying Power?
RegT Buying Power is the maximum equity position you can take on in your account without generating a margin call, but any volatility in price of any securities you have a position in, could change your Buying Power. In general RegT Buying Power is calculated by adding the value of your long positions with your short positions and dividing the total value by two (2) to figure what your equity Requirement at full 50% margin would be. Now subtract your Requirement from your Equity and if the number is positive multiply it by two 2 (two) and that is your Reg T Buying Power if it is negative that will be your Margin Call.