Hi Matthew,
I have a suggestion here about the calculation of portfolio value:
My Sept. $FXE $121 call price is displayed as $6.65, which is last transaction price which happened yesterday. Today The bid x ask is
$8.80 x $8.95, Instead of a gain of $12, I should be up more than $600, the different is more than $1000 in my portfolio value if I consider my other option positions.
My suggestion is: why not using the average of bid and ask to calculate the position value instead of the last transaction price, which could be way off?
I know both IB and Thinkorswim using this approach, and it is easy to do(program).
Thanks!
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