# Custom Quote Formula in Option Chain - % away from Underlying

##### New member
Hello,

I'm new to the forum so pardon any mistakes with etiquette.

I would like to create a custom quote formula that can be displayed as a column in the Option Chain in the Trade tab. Specifically I would like to have a formula that shows the % of the strike of the option away from the underlying. For example, if the strike is \$98 and the underlying is \$100, it would display 2%.

Any advice would be greatly appreciated

Thank you.

Solution
Code:
# define strike price as percentage from last share price

def strikeprice = GetStrike();
def price = close(GetUnderlyingSymbol());

#def totalprice = strikeprice + premium;
#def totalpriceP = ((totalprice - price)/ price )* 100;

#plot value = if isNaN(price) then 0.00 else price;

plot signal = ((strikeprice/price)*100)-100;
In the Options Chain tab, I click on the Layout drop down at the top, then Customize. Select one of the Custom columns, like Custom1 to add it to the current column set. Then click on the scroll icon next to that custom column to edit the thinkScript formula and the name.

As title states. Basically I just want a column for my watchlist and on the option chain that shows me each strike’s percent out of the money.

They have a column for it on the option scanner but it doesn’t show how it’s coded. Is it even possible? Or is it another thing they like being stingy about lol

Code:
# define strike price as percentage from last share price

def strikeprice = GetStrike();
def price = close(GetUnderlyingSymbol());

#def totalprice = strikeprice + premium;
#def totalpriceP = ((totalprice - price)/ price )* 100;

#plot value = if isNaN(price) then 0.00 else price;

plot signal = ((strikeprice/price)*100)-100;

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