The Consequences of REIT Index Membership for Return Patterns

We study the impact of S&P index membership on REIT stock returns. Given the hybrid nature of REITs, their returns may become more like those of other indexed stocks and less like those of their underlying properties. The existing literature does not offer clear predictions on these potential outcomes. Taking advantage of the inclusion of REITs in major S&P indexes starting in 2001, we find that shared index membership significantly increases the correlation between REIT returns after controlling for the stock characteristics that determine index membership. We also document that index membership enhances the link between REIT stock returns and the performance of the underlying real estate, consistent with improved pricing efficiency. REIT investors appear to be able to enjoy the benefits of improved visibility and liquidity associated with index membership as well as the exposure to underlying real estate markets and the related benefits of diversification.

Accounting Earnings Announcements, Institutional Investor Concentration, and Common Stock Returns

[Excerpt] This study examines the relation between the level of institutional investor ownership and the magnitude of security price variability at quarterly earnings announcement dates. Prior research consistently documents a negative association between firm size and announcement-date return variability. One explanation for this finding is that as more timely, alternative information becomes available on large firms prior to an announcement date, their security prices become informative, thereby reducing the information content of the earnings announcement. Large firms are closely followed by institutional investors. These investors dedicate substantial resources to information search. Therefore, the link between size and information production may be attributable to the influence of institutional investors on the information production process. Because institutional trades can also affect security prices, however, the precise impact of institutional following on the variability of prices at quarterly earnings dates is not evident.