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Custom Quote Formula in Trade tab


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I am looking to make a single custom column for the options chain. I am simple looking for a tool to create the price difference between the theoretical option price and ask price of that option. Specifically it will be a column that lists the price difference between a strangle theoretical price and current ask so I can run through some statistics without having to break out the calculator every change in theo price.

I've tried a few basic things but don't seem to be able to figure out how to get it working.

This is one of many combinations I've tried
def PriceDiff;
Input Theo = TheoreticalOptionPrice;
PriceDiff = Theo - ask;

This actually allows me to apply, but the return in the column is NaN
Plot PriceDiff = TheoreticalOptionPrice() - ask();
Last edited:

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@Derek28 Try this...

def Ask = close(priceType = PriceType.ask);
def Theo = TheoreticalOptionPrice();
def PriceDiff = Theo - Ask;
AddLabel(yes, PriceDiff, Color.CYAN);

This is definitely closer, now it calculates a value, but the values isn't the actual difference between the theoretical price and the ask. I appreciate the help though, I'll see if variations of this may help.

Update: But now after market opened it is just returning N/A, weird.
Last edited:

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