We argue that the practise of valuing the portfolio is important for the calculation of the VaR. In particular, the seller (buyer) of an asset does not face horizontal demand (supply) curves. We propose a partially new approach for incorporating this fact in the VaR and in an empirical...

This paper focuses on the analysis of long-memory properties of copula-based time series. We empirically investigate the relation between copulas parameter modeling both temporal dependence and dependence structure, using simulated and financial series. Our results prove the existence of a...

We propose and backtest a multivariate Value-at-Risk model for financial returns based on Tukey's g-and-h distribution. This distributional assumption is especially useful if (conditional) asymmetries as well as heavy tails have to be considered and fast random sampling is of importance. To...

The September 2008 collapse of Lehman Brothers was the 9/11 on Wall Street, and many articles had been written on the changes in the global risk landscape that followed. However, there is scarcity of rigorous studies using empirical data and advanced econometric methods to verify such a change...

This paper considers a link between momentum profitability and firm ratings. Credit risks for naïve momentum strategies present a U-shaped pattern across momentum portfolios. Due to firms ratings containing valuable information and predicting the cross-sectional stock returns, firm ratings...

In today's turbulent marketplace with unprecedented portfolio turnover, transition activity and drawdowns, one must identify and eliminate all sources of Sharpe ratio erosion. In this environment, trading costs and risks are significant contributors to this performance drag and avoiding them is...

Classical quantitative finance models such as the Geometric Brownian Motion or its later extensions such as local or stochastic volatility models do not make sense when seen from a physics-based perspective, as they are all equivalent to a negative mass oscillator with a noise. This paper...

The method previously devised to harvest most of the potential gain in bull markets while avoiding most of the pain in bear markets is improved to provide greater accuracy and minimize whipsaw trading that can occur in some cases. The basic method focuses on a buy-the-market and hold strategy...

In this paper we present empirical results on the statistical and economic viability of a market timing trading strategy that is based on rotation between two risky assets. We use data on Exchange Traded Funds (ETFs) and models for both the returns and the volatility of the underlying assets. We...

This article investigates the effectiveness of TAIEX (Taiwan Stock Exchange) futures, Taiwan 50 futures, and nonfinance nonelectronics subindex (NFNE) futures for cross hedging the price risk of stock sector indices traded on the Taiwan stock exchange. A state-dependent volatility spillover...