Hi all, What's a powerful/easy to use tool that really lets me play with various portfolios, and calculate greeks? I'm willing to pay, priority is on ease of use. I'd like to be able to easily create portfolios across 20-30 strikes, and then see how the valuation changes with volatility + time. I don't know if I need anything really tied to live quotes... I'm dealing with commodity options that aren't always quoted properly (electronically). I need something that's flexible, maybe doesn't even know about instruments... that lets me just "create" strikes as needed. I actually seem to remember there was a sponsor on this site a month or two back that had something pretty impressive that worked with commodity options. Anyone remember their details? Did a quick search, didn't come up with anything.