Page History: While trading options I notice that the account P&L is different from the sum of the individual position P&L's ?
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Page Revision: 2011/10/04 07:50
Options risk is handled slightly different. The reason why the account P&L differs from the sum of the individual position P&L’s:
Long Options position: Ignore negative upl as loss is already counted in the premium paid.
Short Options position: ignore positive upl so that going short does not increase trading power.