WRDS - Wharton Research Data ServiceWRDS acts as a data interface to various financial and economic databases including AuditAnalytics, COMPUSTAT, CRSP, Bank Regulatory Databases, Blockholders, CBOE Indexes, CUSIP Service Bureau, DMEF Academic Data, Dow Jones Averages, Eventus, FDIC Data, Fama French & Liquidity Factors, Federal Reserve Bank , I/B/E/S, Philadelphia Stock Exchange, Penn World Tables, Risk Metrics , SEC Order Execution, Trade Reporting and Compliance Engine, Thomson Reuters - 13F Institutions/Insider Filings/Stock Ownership Summary, Zacks Trial.