Where can I find implied volatility data from the past for commodities that have options traded on them? Thanks very much.
This place was great, but the site hasn't been updated in years: PM Publishing Optionetics[ugh] is another option: Optionetics Futures
Is there any way to use IV and Greeks when trying to construct a time spread with options from two different underlying futures contracts (same commodity).
One way that some data vendors (like pinnacledata.com) do when concatenating different contracts together is to leave front month contract alone and "reverse adjust" all previous contracts by add/subtract the prices with the same offset to make them continuous.