Margin & Collateral Calculator
Reg T · CBOE naked call/put rules · Portfolio margin approximation
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Symbol
Type
Strike
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Qty
Underlying $
Margin Warning:
Margin Breakdown
Symbol
Type
Strike
Qty
Reg T Margin
Portfolio Margin
Margin Type
Reg T Total
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Portfolio Margin Total
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(usually lower)
Account Size
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Available Buying Power
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Margin Used %
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Portfolio Margin Savings
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