This study proposes a multivariate test for linear factor asset pricing models when the number of assets, N, is larger than the time dimension of returns, T. We extend the exact test proposed by Gibbons et al. (1989) to obtain a nonsingular covariance matrix with fewer estimation errors in the...

In this paper we perform an empirical analysis on the VIX Index and we develop a series of portfolio strategies on implied volatility by using VIX Futures. First, we give a brief introduction to the VIX Index and what it represents. Then we focus on the VIX Futures, with an analysis of the VIX...

There is heterogeneity in individual forecasts of any variable — inflation, corporate earnings, etc. The standard consensus estimate takes a simple average of individual forecasts, implicitly treating each forecast as a common signal plus noise. If some individuals know more than others, then...

We present a simulation-and-regression method for solving dynamic portfolio optimization problems in the presence of general transaction costs, liquidity costs and market impact. This method extends the classical least squares Monte Carlo algorithm to incorporate switching costs, corresponding...

The nested-simulation is commonly used for calculating the predictive distribution of the total variable annuity (VA) liabilities of large VA portfolios. Due to the large numbers of policies, inner-loops and outer-loops, running the nested-simulation for a large VA portfolio (100K+) is extremely...

We propose a consistent and computationally efficient 2-step methodology for the estimation of multidimensional non-Gaussian asset models built using Lévy processes. The proposed framework allows for dependence between assets and different tail-behaviors and jump structures for each asset. Our...

In this work we consider the application of expected utility optimization to the construction of an optimal hedge. Utility theory provides a rich framework for decision-making under uncertainty and features preferences specified via a range of simple to possibly complex functions of future...

This report provides an overview of the utility of single stock and custom basket options in fund management. It is shown that managers of active equity funds can limit possible negative return contributions of their over - and underweight positions via single stock options and thus help to...

This report focusses on three particular areas of risk, effectively covering high-level risk drivers, low-level risk interactions and finally cross-sectional risk opportunities.1) In prior work, we showed that a simple 3-factor global model explained a high percentage of local equity index...

Options on a number of currency pairs involving the Rand are readily available to investors in the South African market. The most widely implemented strategies are those involving call options giving geared upside exposure to the underlying. However, overlay strategies such as collars and fences...