Here's a screenshot from InteractiveBrokers TWS for the near-the-money put and call on the ES Dec '15 Future:

ES future options ATM

The absolute value of the time value, 9.50, makes sense. But why is the percentage value over 180%, regardless of moneyness?

  • $\begingroup$ Don't IB provide any documentation on their fields? $\endgroup$ – SRKX Sep 30 '15 at 9:08
  • 1
    $\begingroup$ IB's TWS is very nice software, with a lot of features, but there are glitches and bugs sometimes (in my experience). This may be one of those. $\endgroup$ – noob2 Oct 1 '15 at 14:50

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