historical curve databases historical ff vols dear promised cleaned data put 6 spreadsheet files gold cocoa separately also ran 10 20 30 60 day fwd fwd volatility calculations based historical log return data see results bottom sheet called log returns six spreadsheets attached data files ready pca analysis use either fwd fwd vols recent history implied option quotes complete analysis regards anjam p already done pca aluminum h high grade please repeat analysis one final files al _ h