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Market efficiency reloaded: why insider trades do not reveal exploitable information

Dickgiesser, Sebastian; Kaserer, Christoph - 2008

by a subset of stocks with high arbitrage risk as measured by their idiosyncratic volatility. This restrains arbitrageurs … from engaging in otherwise profitable and price-correcting trades. As arbitrage risk is positively related to a stock's bid … mainly be explained by the cost associated with risky arbitrage. Our findings provide evidence that the German stock market …

Persistent link: https://www.econbiz.de/10010305695

Market liquidity risk: an overview

Stange, Sebastian; Kaserer, Christoph - 2009

Market liquidity is the ease of trading an asset. Its risk is the potential loss, because a security can only be traded at high or prohibitive costs. While the omnipresence and importance of market liquidity is widely acknowledged, it has long remained a more or less elusive concept. Treatment...

Persistent link: https://www.econbiz.de/10010305705

Measuring market liquidity risk - which model works best?

Ernst, Cornelia; Stange, Sebastian; Kaserer, Christoph - 2009

Market liquidity risk, the difficulty or cost of trading assets in crises, has been recognized as an important factor in risk management. Literature has already proposed several models to include liquidity risk in the standard Value-at-Risk framework. While theoretical comparisons between those...

Persistent link: https://www.econbiz.de/10010305708

DAXplus family: Ein Aktienindex zur Darstellung der Performance von Familienunternehmen

Achleitner, Ann-Kristin; Kaserer, Christoph; Kauf, Tobias; … - 2010

In January 2010 the Deutsche Börse Group introduced two family firm stock indices. Both indices are calculated as price and performance indices and extend the number of investment strategy indices of Deutsche Börse Group. The DAXplus Family is an all-share index whereas the DAXplus Family 30...

Persistent link: https://www.econbiz.de/10010305712

Why and how to integrate liquidity risk into a VaR-framework

Stange, Sebastian; Kaserer, Christoph - 2008

We integrate liquidity risk measured by the weighted spread into a Value-at-Risk (VaR) framework. The weighted spread measure extracts liquidity costs by order size from the limit order book. We show that it is precise from a risk perspective in a wide range of clearly defined situations. Using...

Persistent link: https://www.econbiz.de/10010305731

The German entrepreneurial index (GEX®): a primer on an ownership-based style index in Germany

Achleitner, Ann-Kristin; Kaserer, Christoph; … - 2009

Recent research indicates that the majority of listed firms in Germany (and also in many other countries around the world) have a dominant owner rather than being widely-held. Hence, owner-dominated firms comprise an important subset of listed companies. This article introduces the concept of an...

Persistent link: https://www.econbiz.de/10010305735

Risikofaktoren und Multifaktormodelle für den Deutschen Aktienmarkt (Risk Factors and Multi-Factor Models for the German Stock Market)

Hanauer, Matthias; Kaserer, Christoph; Rapp, Marc Steffen - 2011

Der deutsche Aktienmarkt sah sich in den letzten 15 Jahren substantiellen Veränderungen gegenüber, welche unter anderem in eine zunehmende Internationalisierung und deutlich erhöhten Streubesitz mündeten. In der vorliegenden Arbeit untersuchen wir, inwieweit dies die aus klassischen...

Persistent link: https://www.econbiz.de/10010307494

Factor models for portfolio selection in large dimensions: The good, the better and the ugly

De Nard, Gianluca; Ledoit, Olivier; Wolf, Michael - 2018

This paper injects factor structure into the estimation of time-varying, large-dimensional covariance matrices of stock returns. Existing factor models struggle to model the covariance matrix of residuals in the presence of conditional heteroskedasticity in large universes. Conversely,...

Persistent link: https://www.econbiz.de/10011969201

Factor mimicking portfolios for climate risk

De Nard, Gianluca; Engle, Robert F.; Kelly, Bryan T. - 2024

We propose and implement a procedure to optimally hedge climate change risk. First, we construct climate risk indices through textual analysis of newspapers. Second, we present a new approach to compute factor mimicking portfolios to build climate risk hedge portfolios. The new mimicking...

Persistent link: https://www.econbiz.de/10014536336

Large dynamic covariance matrices: Enhancements based on intraday data

De Nard, Gianluca; Engle, Robert F.; Ledoit, Olivier; … - 2020

Modeling and forecasting dynamic (or time-varying) covariance matrices has many important applications in finance, such as Markowitz portfolio selection. A popular tool to this end are multivariate GARCH models. Historically, such models did not perform well in large dimensions due to the...

Persistent link: https://www.econbiz.de/10012253774