thinkscript-CallPutCalcs.txt

# Display Call or Put info based on which side the column
# is displayed on in thinkorswim option tree.
# Displays on call side % premium | % (premium + stock '1 contract exercised')
# Displays on put side % premium | breakeven price 

input maxPctThreshold = .5;
def maxShares = 100;
def maxContracts = 1;
def premium = maxContracts * close * maxShares;
def totalStkPri1C = maxshares*close(getunderlyingsymbol());
def premiumPct = premium / totalStkPri1C;
def newBreakEvenPrice = getstrike() - close;;
def stockPriceGain = getstrike() - close(getunderlyingSymbol());
def premiumPlusShares = premium + (maxshares * stockpriceGain);
def premiumPlusSharesPct = premiumPlusShares / totalstkPri1C;

addlabel(yes, "show");
#AddLabel(yes, displayThis, displayColor);
addlabel(yes, if isPut() then (aspercent(premiumPct)+" | "+AsPrice(newBreakEvenPrice)) else (aspercent(premiumPct) + " | " + aspercent(premiumPlusSharesPct)), if isPut() then (color.DARK_GREEN) else (if premiumPlusSharesPct >= maxPctThreshold then color.green else color.black));