The Cost of Contango—It’s not the Daily Roll
A while back I developed a consolidated spreadsheet to organize historic VIX futures data from the CBOE into a single spreadsheet. Using this spreadsheet I calculate the short (SPVXSTR) and medium term (SPVXMTR) rolling indexes that underlie the various volatility Exchange Traded Products (ETP) like VXX, UVXY, XIV, and ZIV The image below shows a small sample comparing my calculations (M1-M2 Short Term Rolling Index) with the official …