WRDS Database Linking Tool
WRDS has over 600 datasets from more than 50 vendors. Use our Database Linking Tool to view linking procedures.
For a visual depiction see Linking Matrix View.
| Database 1 | Database 2 | Description |
|---|---|---|
| CRSP | CRSP | Linking within the CRSP Environment |
| CRSP | Compustat | CRSP/Compustat Merged (CCM) - (Additional product) |
| CRSP | Thomson / Refinitiv | MFLINKs for Mutual Fund Linking |
| Compustat | CRSP | CRSP/Compustat Merged (CCM) - (Additional product) |
| Compustat | Compustat | Linking within the Compustat Environment using GVKEY |
| Compustat | Thomson / Refinitiv | Link through CUSIP |
| Capital IQ | CRSP | CIQ company ID linked to GVKEY and then to CRSP |
| Capital IQ | Compustat | Linking within Capital IQ |
| Capital IQ | Thomson / Refinitiv | Link through CUSIP, ISIN or Ticker |
| TAQ | CRSP | Daily TAQ / CRSP Link |
| TAQ | Compustat | Link through CRSP |
| TAQ | Thomson / Refinitiv | Link to IBES through CUSIP |
| Thomson / Refinitiv | CRSP | Linking through CUSIP |
| Thomson / Refinitiv | CRSP | MFLINKs for Mutual Fund Linking |
| Thomson / Refinitiv | CRSP | 13f Linking Program |
| Thomson / Refinitiv | Compustat | Link using Compustat IBES/GVKEY linking table |
| Thomson / Refinitiv | Compustat | Link using CRSP's CUSIP |
| Thomson / Refinitiv | Compustat | Link using ISIN (for Compustat Global) |
| Thomson / Refinitiv | Thomson / Refinitiv | Dealscan Worldscope Link |
| Thomson / Refinitiv | Thomson / Refinitiv | Worldscope Datastream Link |
| Thomson / Refinitiv | Thomson / Refinitiv | Linking within Refinitiv (Thomson Reuters) |
| Factset | CRSP | Factset CRSP Link (Beta) |
| Factset | Compustat | Link through CRSP |
| Factset | Thomson / Refinitiv | Link through CUSIP |
| BoardEx | CRSP | Link with CRSP and Compustat |
| BoardEx | Thomson / Refinitiv | TR Insiders Boardex Link |
| IBES | CRSP | IBES CRSP Link |
| IBES | Compustat | Link through CRSP |
| IBES | Thomson / Refinitiv | Link through Security Mapping |
| OptionMetrics | CRSP | Option Metrics CRSP Link |
| OptionMetrics | Compustat | Link through CRSP |
| OptionMetrics | Thomson / Refinitiv | Link through CUSIP (for US) or ISIN (for International) |
| Bond:TRACE/Mergent FISD | CRSP | Bond CRSP Link |
| Bond:TRACE/Mergent FISD | Compustat | Link through CRSP |
| Bond:TRACE/Mergent FISD | Thomson / Refinitiv | Link through CRSP |
| SEC | CRSP | CIK-CUSIP Link |
| SEC | Compustat | GVKEY-CIK Link |
| SEC | Thomson / Refinitiv | Link through CRSP or Compustat |
| Audit Analytics | CRSP | Link through Compustat |
| Audit Analytics | Compustat | Link through CIK Link (primary) |
| Audit Analytics | Compustat | Link through Ticker (secondary) |
| Thomson / Refinitiv | Thomson / Refinitiv | Link through Compustat |
| Bureau van Dijk | CRSP | Link through ISIN (CUSIP) for US Companies |
| Bureau van Dijk | Compustat | Link through CRSP |
| Bureau van Dijk | Thomson / Refinitiv | Link through ISIN or SEDOL |
| ISS: Institutional Shareholder Services | CRSP | Link through CUSIP |
| ISS: Institutional Shareholder Services | Compustat | Link through CIK or CUSIP |
| ISS: Institutional Shareholder Services | Thomson / Refinitiv | Link to IBES through CUSIP |
| Markit | CRSP | Link REDCODE with CUSIP (CDS) |
| Markit | CRSP | Link DXLID with CUSIP (SecFin) |
| Markit | Compustat | Link REDCODE with CUSIP (CDS) |
| Markit | Compustat | Link DXLID with CUSIP (SecFin: US) |
| Markit | Compustat | Link DXLID with ISIN (SecFin: Global) |
| Markit | Thomson / Refinitiv | Link through CRSP (US) |
| Markit | Thomson / Refinitiv | Link through ISIN or SEDOL (International) |
| Ravenpack | CRSP | Link through CUSIP |
| Ravenpack | Compustat | Link through CUSIP (US) or ISIN (Global) |
| Ravenpack | Thomson / Refinitiv | Ravenpack IBES link |
| RepRisk | CRSP | Link through ISIN (carve out CUSIP) |
| RepRisk | Compustat | Link through ISIN (carve out CUSIP) |
| RepRisk | Thomson / Refinitiv | RepRisk IBES Link |
| Sustainalytics | CRSP | Link through ISIN (carve out CUSIP) |
| Sustainalytics | Compustat | Link through CIQ_ID or ISIN |
| Sustainalytics | Thomson / Refinitiv | Sustainalytics IBES link |
| BoardEx | Compustat | Link with CRSP and Compustat |
| CRSP | Thomson / Refinitiv | Linking through CUSIP |
| CRSP | Thomson / Refinitiv | 13F Linking Program |
| Audit Analytics | Thomson / Refinitiv | Link through Compustat |