Finance and Economics Discussion Series (FEDS)

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September 2018

Bank Holdings and Systemic Risk

Celso Brunetti, Jeffrey H. Harris, and Shawn Mankad

Abstract:

The recent financial crisis has focused attention on identifying and measuring systemic risk. In this paper, we propose a novel approach to estimate the portfolio composition of banks as function of daily interbank trades and stock returns. While banks' assets are reported to regulators and/or the public at relatively low frequencies (e.g. quarterly or annually), our approach estimates bank asset holdings at higher frequencies which allows us to derive precise estimates of (i) portfolio concentration within each bank--a measure of diversification--and (ii) common holdings across banks--a measure of market susceptibility to propagating shocks. We find evidence that systemic risk measures derived from our approach lead, in a forecasting sense, several commonly used systemic risk indicators.
Accessible materials (.zip)

Keywords: Bank holdings, concentration index, similarity index, systemic risk

DOI: https://doi.org/10.17016/FEDS.2018.063

PDF: Full Paper

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Last Update: January 09, 2020