Tented's numbers differ from my broker's

What you see. A figure in Tented does not match your broker or another platform.

Why. Often by design. Three choices differ from many platforms: Trading time decays less overnight, Skew moves IV along the smile, and index options are priced on the level put-call parity implies. Figures that come from IB, such as Net liq and Excess, are IB’s. Tented’s own margin figures are structural risk numbers, not buying-power requirements.

What to do. To compare, choose Calendar for Option time and Sticky strike for Vol model in Settings → Trading (see Trading settings). Futures options always use calendar time. If the figures still disagree, send Feedback.