Kole, Erik; Markwat, Thijs; Opschoor, Anne; van Dijk, Dick - 2015
We examine the impact of temporal and portfolio aggregation on the quality of Value-at-Risk (VaR) forecasts over a … horizon of ten trading days for a well-diversified portfolio of stocks, bonds and alternative investments. The VaR forecasts … that the degree of temporal aggregation is most important. Daily returns form the best basis for VaR forecasts. Modelling …