Factors Associated with Differences in the Magnitude of Abnormal Returns Around NYSE Versus NASDAQ Firms' Earnings Announcements

38 Pages Posted: 6 Nov 2001

See all articles by Youngsoon Susan Cheon

Youngsoon Susan Cheon

Chung-Ang University - College of Business Administration

Theodore E. Christensen

University of Georgia; University of Georgia - J.M. Tull School of Accounting

Linda Smith Bamber

University of Georgia - J.M. Tull School of Accounting

Abstract

This study provides an explanation for the "exchange effect" puzzle documented in prior accounting research. Grant (1980) finds that the magnitude of earnings announcement week abnormal returns is higher, on average, for firms traded over-the-counter than for NYSE firms. Atiase (1987) shows that this incremental "exchange effect" persists even after controlling for firm size. We investigate potential explanations for this incremental exchange effect. We first show that even after controlling for differences in firm size, Nasdaq firms have less rich information environments and enjoy greater growth opportunities than NYSE firms. We then investigate whether differential predisclosure information environments and/or growth opportunities can explain the incremental exchange effect. The results indicate that although the absolute magnitude of the earnings announcement-related abnormal returns is inversely related to proxies for the amount of predisclosure information, the incremental exchange effect cannot be explained by differences in the predisclosure information environment. In contrast, after controlling for differences in growth opportunities across NYSE versus Nasdaq firms, and investors' heightened sensitivity to Nasdaq firms' growth opportunities in particular, there is no significant incremental exchange effect (whether or not we control for predisclosure information). These results suggest that the incremental exchange effect puzzle documented in prior research is more likely to reflect growth-related phenomena than differences in the predisclosure information environment.

Keywords: Exchange effect, Predisclosure information, Growth opportunities

JEL Classification: G14, G10, M41, M44

Suggested Citation

Cheon, Youngsoon Susan and Christensen, Theodore E. and Christensen, Theodore E. and Bamber, Linda Smith, Factors Associated with Differences in the Magnitude of Abnormal Returns Around NYSE Versus NASDAQ Firms' Earnings Announcements. Available at SSRN: https://ssrn.com/abstract=289023 or http://dx.doi.org/10.2139/ssrn.289023

Youngsoon Susan Cheon

Chung-Ang University - College of Business Administration ( email )

221 Hukseuk-Dong
Department of Accounting
Seoul 156-756
Korea
822-820-5522 (Phone)
822-813-8910 (Fax)

Theodore E. Christensen (Contact Author)

University of Georgia ( email )

Athens, GA
United States

University of Georgia - J.M. Tull School of Accounting ( email )

Athens, GA 30602
United States

Linda Smith Bamber

University of Georgia - J.M. Tull School of Accounting ( email )

Athens, GA 30602
United States
706-542-3501 (Phone)
706-542-3630 (Fax)

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