Hello traders: Do you know of any software or site that allows users to graph OTC options? I would like to plug in the needed factors (e.g. underlying price, strike price, volatility, time to expiration, etc.) and have the software plot the expected profit/loss graph. There are plenty of programs and sites that provide the data and plot the graph all as one, but I can't find one to use with non-exchange traded options where the user would have to provide the data. Thanks!