Gael M. Martin, Andrew Reidy, and Jill Wright, "Does the Option Market Produce Superior Forecasts of Noise-Corrected Volatility Measures?" Journal of Applied Econometrics, Vol. 24, No. 1, 2009, pp. 77-104. There are two zip files. The file AVM-xls.zip contains 8 Excel files, and the file AVM-csv.zip contains 8 ASCII text files in CSV format. The latter are DOS-formatted, so Unix users should use "unzip -a". Each zip file contains eight files: AVM-xls.zip: GE-avm-1996-2001.xls GE-avm-2001-2006.xls IBM-avm-1996-2001.xls IBM-avm-2001-2006.xls msft-avm-1996-2001.xls msft-avm-2001-2006.xls sp500-avm-1996-2001.xls sp500-avm-2001-2006.xls AVM-csv.zip: GE-avm-1996-2001.csv GE-avm-2001-2006.csv IBM-avm-1996-2001.csv IBM-avm-2001-2006.csv msft-avm-1996-2001.csv msft-avm-2001-2006.csv sp500-avm-1996-2001.csv sp500-avm-2001-2006.csv The corresponding .xls and .cls files contain the same data. There are two sets of files: Set 1: Daily values of annualized realized variance measures for the S&P500 index, International Business Machines (IBM), Microsoft (MSFT) and General Electric (GE) over the period 1/7/1996 to 29/08/2001. Each of the .xls and .cls files has 9 columns: Col. 1 -- Date (day t) Col. 2 -- RV(5) on day t Col. 3 -- RVA(5) on day t Col. 4 -- TSRV on day t Col. 5 -- TSRV2 on day t Col. 6 -- RKERN on day t Col. 7 -- OSRV on day t Col. 8 -- ALTM on day t Col. 9 -- BV on day t Notes: 1. The explanation of all acronyms and the equations in the paper to which they relate are given in Section 3.1 of the paper. All details of the manner in which the alternative variance measures (columns 2 to 9) are constructed are given at appropriate points in the paper, most notably in Sections 2, 3.1 and 4.1. All realized variance measures have been transformed to represent 24 hour variance measures, as described in Sections 3.1 and 4.1. 2. The first year of observations (1/7/1996 to 30/06/1997) was used to set pre-sample values in the estimation of all long-memory models 3. Rolling samples of size R =3D 1000 (days) were used to produce one- and 22-step ahead forecasts, as explained in Section 4.1, with the first forecast being for 30/08/2001. Set 2: Daily values of annualized realized variance measures for the S&P500 index, International Business Machines (IBM), Microsoft (MSFT) and General Electric (GE) over the period 30/08/2001 to 31/05/2006, plus the prior day option-implied forecasts. Each of the .xls and .cls files has 14 (or 15) columns: Col. 1 -- Date (day t) Col. 2 -- RV(5) on day t Col. 3 -- RVA(5) on day t Col. 4 -- TSRV on day t Col. 5 -- TSRV2 on day t Col. 6 -- RKERN on day t Col. 7 -- OSRV on day t Col. 8 -- ALTM on day t Col. 9 -- BV on day t Col. 10 -- ATM on day t-1 Col. 11 -- MF on day t-1 Col. 12 -- MF(1.5) on day t-1 Col. 13 -- MF(2) on day t-1 Col. 14 -- MF(2.5) on day t-1 Col. 15 -- VIX (for S&P500 data file only) on day t-1 Notes: 1. The explanation of all acronyms used for column headings 10 to 15 are given in Sections 3.1, 4.1 and 4.2.4 of the paper. All details of the manner in which the alternative option-implied variance measures (in columns 10 to 15) are constructed are given at appropriate points in the paper, most notably in Sections 3.2.3, 4.1 and 4.2.4. 2. This is the sample used for forecast evaluation (via the SPA test): 3. The option-implied forecasts (Section 3.2.3) of any realized variance measure on day t of this sample period are constructed from option market data for day t-1. 4. The "direct" returns-based forecasts (Section 3.2.2) of any realized variance measure on day t of this sample period are constructed from time series models fitted to the realized variance measures over the 1000 days up to and including day t-1. 5. The "indirect" returns-based forecasts (Section 3.2.1) of any realized variance measure on day t of this sample period are constructed from time series models fitted to the daily closing returns over the 1000 days up to and including day t-1. All equity data were supplied by the Securities Industries Research Centre of Asia Pacific (SIRCA) on behalf of Reuters, with the raw data then cleaned using the methods of Brownlees and Gallo (2005). The VIX data were extracted from the CBOE website (www.cboe.com). All ATM, BS and MF calculations are based on the implied volatility surface data provided by IVOLATILTY (www.ivolatility.com). IVOLATILITY and SIRCA have give permission for the publication of this data. The VIX data are on public record. Gael M. Martin Monash University, Clayton Department of Econometrics and Business Statistics Building 11E, Monash University, Victoria 3800, Australia gael.martin [AT] buseco.monash.edu.au