A contradiction at the heart of the European Commission’s Ucits rules means that value at risk calculations in some European countries are at odds with each other, according to EM Appli
A contradiction at the heart of the European Commission’s Ucits rules means that value at risk calculations in some European countries are at odds with each other, according to EM Applications, a supplier of investment risk solutions to asset managers and securities firms.
The firm says this lies at the heart of the confusion over the VaR measure and should be resolved as a priority.
The European Commission’s Ucits rules recommend that VaR calculations be conducted using ‘recent volatilities (i.e. no more than one year)’. However, when this was transposed into national regulations in Luxembourg, Ireland and Germany it became a stipulation that the historical period used should ‘not less than one year’.
EM Applications says this is not due to an error on the part of either the Commission or the Luxembourg, Irish or German regulators. It is a recognition that the historical period used is fundamental to the purpose of the VaR calculation.
There are many ways to measure VaR, which will generate very different answers. Typically, VaR is determined by an investment’s historical behaviour. Using a short historical ‘lookback’ period to estimate VaR is appropriate for those seeking to estimate potential losses in the immediate future, as it will be more reflective of current market conditions. However, for long-term management of an investment portfolio with a certain type of risk profile, a longer term measure, using historical data from several years in the past, is more appropriate as an indication of the portfolio’s intrinsic risk.
EM Applications believes that neither approach, short term or long term VaR, is superior to the other, as both measures provide useful information. It recommends that the Ucits rules be changed to require both measures – a long term one as a way of characterising the risk level of a fund, and the short term one to ensure that losses in excess of the fund’s assets cannot happen in reasonably foreseeable market conditions.
Peter Ainsworth, managing director of EM Applications, says: ‘Whether by design or accident, the Ucits regulators have come up with the solution to the main issues raised about VaR – collectively they have required investment managers to calculate both a short term and a long term VaR. Had the banks been doing this they would not have operated with so little capital and would have suffered much less harm as a consequence of the sub-prime crisis. All that is needed now is for the EU to amend the Ucits rules to require all jurisdictions to compute both long and short term VaR and we will have a practical way forward that addresses a major shortcoming of the previous regime.’
