Is intraday data useful for forecasting VaR? The evidence from EUR/PLN exchange rate

  • Barbara Będowska-Sójka
Original Article


In this paper, we evaluate alternative volatility forecasting methods under Value at Risk (VaR) approach by calculating one-step-ahead forecasts of daily VaR for the EUR/PLN foreign exchange rate within the 4-year period. Using several risk models, including GARCH specifications and realized volatility models as well as hybrid of these two, we examine whether incorporation of intraday data allows to produce better one-step-ahead volatility forecasts in daily horizon than in case of using daily data only. The volatility forecasts are compared within VaR framework in two-step procedure: the statistical accuracy test are conducted as well as the loss functions are obtained. We find that GARCH models produce better backtesting results than models for realized volatility. When the loss functions of the models that passed the first-stage filtering procedure are compared, there is no distinct winner of the race. We also find no evidence that skewed Student t distribution assumption within GARCH models provides better VaR forecasts when compared to symmetric Student.


VaR Intraday data Realized volatility GARCH ARFIMA HAR-RV Jumps 



I gratefully acknowledge the comments by anonymous referees as well as conference participants at the International Risk Management Conference 2016 organized by University of Florence, NYU Stern Salomon Center and Hebrew University of Jerusalem. All remaining errors are mine.


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Copyright information

© Macmillan Publishers Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of EconometricsPoznań University of Economics and BusinessPoznańPoland

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