Big is Beautiful: The Information Content of Bank Rating Changes

The Journal of Risk Finance, Vol. 16 Iss 3 pp. 233 - 252.

Posted: 8 Jan 2014 Last revised: 14 Jan 2016

See all articles by Christian Fieberg

Christian Fieberg

University of Bremen - Department of Business Administration

Finn Marten Körner

ZenTra - Center for Transnational Studies; Uniper SE

Jörg Prokop

University of Oldenburg - Finance and Banking; ZenTra - Center for Transnational Studies

Armin Varmaz

University of Applied Sciences Bremen

Date Written: December 10, 2013

Abstract

We study the information content of about 3,300 global bank rating changes before and after the Lehman shock in September 2008 from an equity investor's perspective. Based on a multi-model event study approach, we find that while upgrades are not associated with significant abnormal bank stock returns, downgrades have a significantly negative effect. In addition, abnormal returns are more negative post-Lehman, and even when controlling for bank size, this effect is considerably stronger for small banks than for large banks. We conclude that large banks' stock prices seem to be to some extent insulated from negative rating information even post-Lehman due to an implicit "too big to fail" subsidy anticipated by equity investors.

Keywords: credit rating, event study, too big to fail, SIFI, multi-factor approach

JEL Classification: G14, G15, N2

Suggested Citation

Fieberg, Christian and Körner, Finn Marten and Prokop, Jörg and Varmaz, Armin, Big is Beautiful: The Information Content of Bank Rating Changes (December 10, 2013). The Journal of Risk Finance, Vol. 16 Iss 3 pp. 233 - 252. . Available at SSRN: https://ssrn.com/abstract=2375266 or http://dx.doi.org/10.2139/ssrn.2375266

Christian Fieberg (Contact Author)

University of Bremen - Department of Business Administration ( email )

Bremen, D-28359
Germany

HOME PAGE: http://www.fiwi.uni-bremen.de

Finn Marten Körner

ZenTra - Center for Transnational Studies ( email )

Carl von Ossietzky University of Oldenburg
Ammerländer Heerstraße 138
Oldenburg, 26129
Germany

HOME PAGE: http://www.zen-tra.de

Uniper SE ( email )

E.ON-Platz 1
Düsseldorf, 40479
Germany

HOME PAGE: http://https://www.uniper.energy/

Jörg Prokop

University of Oldenburg - Finance and Banking ( email )

Germany

ZenTra - Center for Transnational Studies ( email )

Ammerländer Heerstraße 138
Oldenburg, 26131
Germany

Armin Varmaz

University of Applied Sciences Bremen ( email )

Neustadtswall 30
Bremen, 28199
Germany

HOME PAGE: http://www.hs-bremen.de/internet/de/hsb/struktur/mitarbeiter/varmaz/

Register to save articles to
your library

Register

Paper statistics

Abstract Views
846
PlumX Metrics