I am wondering which chart price do nexusfi members follow for trading options? Do you look at spot price, future price or specific options strike price charts while making a decision? Does either one have an advantage/disadvantage over the other? For me, I look at spot index price (with volume) but have seen other people using futures chart. Spot vs futures don't always have a 1:1 relationship when there are gaps or any event/news and Options obviously has other factors (greeks) driving their movement. So, which one do you guys track and why? -- if you want to trade options.