CRSP Ziman Real Estate Data Series

CRSP/Ziman REIT Data Series

The CRSP/Ziman REIT Data Series represents a collaborative effort between the UCLA Ziman Center for Real Estate and The Center for Research in Security Prices at the University of Chicago. The REIT data series is a unique research resource whose development merges CRSP's experience in academic-quality financial database and index creation with the Ziman Center's expertise in real estate markets and the collection of real estate data.

Combining stock price and returns data with carefully researched information regarding the population, characteristics, and history of REITs, the CRSP/Ziman database provides firm-specific information and indexes essential to analyses of REITS.

Daily and monthly indexes are computed with both equal-and value-weighting for subsets defined by type of REIT and the types of properties predominantly held by equity REITs. This new database includes several qualitative measures detailing market capitalizations, concentrations, and changes in index composition. These measures are useful in evaluating the information in the index series during periods when they were thinly populated.

By providing this information on all REITs that have traded on the three primary exchanges since 1980, the CRSP/Ziman REIT Data Series allows for time series and events studies, measurement of performance, accurate benchmarking, and in-depth analysis of the individual securities.  In addition, the ability to use this data in conjunction with the CRSP/Compustat merged database allows for a wide range of research.

Download CRSP/Ziman Real Estate Data Series Guide (pdf)


REIT Universe:

  • All REITs that have traded on the NYSE, Amex, and NASDAQ exchanges since 1980
  • Indexes based on all REITs, REIT type, and REIT property type


  • Daily and monthly data item frequency
  • Individual security data includes PERMNO, name, price, share count, returns, property type, and REIT type
  • Summary Statistics - Total value, beginning count, add count and value, drop count and value, observed count and value
  • Herfindahl-Hirschman Index (HHI) and concentration ratio


  • Annual or monthly shipments delivered on DVD
  • Product ships as the Daily database or combined Daily/Monthly
  • Ships as SAS datasets, ASCII format files, or as a Microsoft Access database
  • Supported on Windows, Linux, and Sun Solaris

For additional information on the CRSP/Ziman REIT Data Series or purchasing subscriptions, please contact Stephen D. Cauley, Project Manager, Ziman/CRSP REIT Data Series, at:, or