WRDS: Wharton Research Data Services This link opens in a new windowWharton's business data research service - our subscription includes access to: Bank Regulatory, Blockholders, Bureau van Dijk (Amadeus & Osiris), CBOE Indexes, COMPUSTAT, Compstat Global, CRSP, CUSIP, ComScore, DMEF Academic Data, Dow Jones, Eventus, FDIC, Fama French & Liquidity Factors, Federal Reserve Bank, IBES, MFLINKS, Morningstar CISDM, Option Metrics, PHLX, Penn World Tables, SEC Order Execution, TRACE, Thomson Reuters