SPX, yes. Data back to 1-1-2007. EOD data only. Source is OptionMetrics, the defacto data provider for every major investment manager and hedge fund.
Fantastic will subscribe and try the product. I built a tool for myself, but it is a bit clunky. Very curious what you have done. I assume all strikes and contracts?
Use this link, it's cheaper: https://cmlviz.com/register/cml-tra...medium=partner_link&utm_campaign=elite_trader
I am sure you can cancel any time. Try it for a month, cancel if you do not like. It will set you down whopping $89.