Know Your Customer: Relationship Lending and Bank Trading

50 Pages Posted: 16 Aug 2021 Last revised: 17 Aug 2021

See all articles by Rainer F. H. Haselmann

Rainer F. H. Haselmann

Goethe University Frankfurt - Faculty of Economics and Business Administration; Leibniz Institute for Financial Research SAFE

Christian Leuz

University of Chicago - Booth School of Business; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR); Leibniz Institute SAFE; European Corporate Governance Institute (ECGI); Center for Financial Studies (CFS); CESifo Research Network

Sebastian Schreiber

Goethe University Frankfurt

Date Written: August 1, 2021

Abstract

In this study, we analyze the trading behavior of banks with lending relationships. We combine detailed German data on banks’ proprietary trading and market making with lending information from the credit register and then examine how banks trade stocks of their borrowers around important corporate events. We find that banks trade more frequently and also profitably ahead of events when they are the main lender (or relationship bank) for the borrower. Specifically, we show that relationship banks are more likely to build up positive (negative) trading positions in the two weeks before positive (negative) news events, and also that they unwind these positions shortly after the event. This trading pattern is more pronounced for unscheduled earnings events, M&A transactions, and after borrower obtain new bank loans. Our results suggest that lending relationships endow banks with important information, highlighting the potential for conflicts of interest in banking, which has been a prominent concern in the regulatory debate.

Suggested Citation

Haselmann, Rainer F. H. and Haselmann, Rainer F. H. and Leuz, Christian and Schreiber, Sebastian, Know Your Customer: Relationship Lending and Bank Trading (August 1, 2021). LawFin Working Paper No. 22, Available at SSRN: https://ssrn.com/abstract=3903968 or http://dx.doi.org/10.2139/ssrn.3903968

Rainer F. H. Haselmann (Contact Author)

Leibniz Institute for Financial Research SAFE ( email )

(http://www.safe-frankfurt.de)
Theodor-W.-Adorno-Platz 3
Frankfurt am Main, 60323
Germany

Goethe University Frankfurt - Faculty of Economics and Business Administration ( email )

Mertonstrasse 17-25
Frankfurt am Main, D-60325
Germany

Christian Leuz

University of Chicago - Booth School of Business ( email )

5807 S. Woodlawn Avenue
Chicago, IL 60637
United States
773-834-1996 (Phone)

HOME PAGE: http://faculty.chicagobooth.edu/christian.leuz/

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

HOME PAGE: http://www.nber.org

Centre for Economic Policy Research (CEPR) ( email )

London
United Kingdom

Leibniz Institute SAFE ( email )

(http://www.safe-frankfurt.de)
Theodor-W.-Adorno-Platz 3
Frankfurt am Main, 60323
Germany

European Corporate Governance Institute (ECGI)

Brussels
Belgium

HOME PAGE: http://www.ecgi.org

Center for Financial Studies (CFS) ( email )

Grüneburgplatz 1
Frankfurt am Main, 60323
Germany

CESifo Research Network

Poschinger Str. 5
Munich, DE-81679
Germany

Sebastian Schreiber

Goethe University Frankfurt ( email )

Grüneburgplatz 1
Frankfurt am Main, 60323
Germany

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