Related provisions for BIPRU 7.10.109
1 - 4 of 4 items.
BIPRU 7.10 provides details of when the appropriate regulator expects to allow a firm to use a VaR model (value at risk model) for the purpose of calculating part or all of its PRR. It introduces the concept of a VaR model, the methodology behind it and the link to the standard market risk PRR rules. It then goes on to detail the application and review process. The bulk of BIPRU 7.10 specifies the model standards and risk management standards that firms will be required to meet
BIPRU 7.10 sets out the minimum standards that the appropriate regulator expects firms to meet before granting a VaR model permission. The appropriate regulator will not grant a VaR model permission unless it is satisfied that the requirements of BIPRU 7.10 are met and it is satisfied about the procedures in place at a firm to calculate the model PRR. In particular the appropriate regulator will not normally grant a VaR model permission unless it is satisfied about the quality
3A firm must demonstrate through backtesting or other appropriate means that its all price risk measure can appropriately explain the historical price variation of these positions. A firm must be able to demonstrate to the appropriate regulator that it can identify the positions within its correlation trading portfolio, in relation to which it is authorised to use the all price risk measure, separately from those other positions in relation to which it is not authorised to do
At least once a year, a firm must conduct, as part of its regular internal audit process, a review of its risk management process. This review must include both the activities of the business trading units and of the independent risk control unit, and must be undertaken by suitably qualified staff independent of the areas being reviewed. This review must consider, at a minimum:(1) the adequacy of the documentation of the risk management system and process;(2) the organisation
A firm must have processes in place to ensure that its VaR model has been adequately validated by suitably qualified parties independent of the development process to ensure that it is conceptually sound and adequately captures all material risks. This validation must be conducted when the VaR model is initially developed and when any significant changes are made to the VaR model. The validation must also be conducted on a periodic basis but especially where there have been any
(1) In addition to regulatory backtesting programs, testing for model validation should be carried out using additional tests which may include for example:(a) testing carried out using hypothetical changes in portfolio value that would occur were end of day positions to remain unchanged;(b) testing carried out for longer periods than required for the regular backtesting programme (for example, 3 years);(c) testing carried out using confidence intervals other than the 99 percent
In assessing whether the VaR model is implemented with integrity as described in BIPRU 7.10.58R (Stress testing), the appropriate regulator will consider in particular the information technology systems used to run the model and associated calculations. The assessment may include:(1) feeder systems; risk aggregation systems; time series databases; the VaR model system; stress testing system; the backtesting system including profit and loss cleaning systems where appropriate; data
A firm must ensure that it has adequate controls relating to:(1) the derivation of the model PRR;(2) the integrity of the backtesting programme, including the calculation of the profit and loss account;(3) the integrity and appropriateness of the VaR model, including the VaR model's geographic coverage and the completeness of data sources;(4) the VaR model's initial and ongoing development, including independent validation;(5) the valuation models, including independent validation;
Backtesting conducted only at a whole portfolio level using a single measure of profit and loss has limited power to distinguish an accurate VaR model from an inaccurate one. Backtesting should therefore be regarded as an additional safeguard rather than a primary validation tool. Such testing does however form the basis of the appropriate regulator'splus factor system. The test has been chosen as the basis of the backtesting regime because of its simplicity. A firm will therefore
The ultimate purpose of backtesting is to assess whether capital is sufficient to absorb actual losses. Actual daily profit and loss means the day's profit and loss arising from trading activities within the scope of the VaR model permission. This measure should, however, be 'cleaned' using BIPRU 7.10.100R inclusion in profit and loss of non-modelled factors.3
The appropriate regulator will review as part of a firm'sVaR model permission application the processes and documentation relating to the derivation of profit and loss used for backtesting. A firm's documentation should clearly set out the basis for cleaning profit and loss. To the extent that certain profit and loss elements are not updated every day (for example certain reserve calculations) the documentation should clearly set out how such elements are included in the profit
A backtesting exception is deemed to have occurred for any business day if the hypothetical profit and loss figure3 for that business day shows a loss, which in absolute magnitude, exceeds the one-day VaR measure for that business day. The only exception is if that business day is identified in the firm'sVaR model permission as giving rise to an excluded backtesting exception.3
If a backtesting exception occurs, the firm must notify its usual supervisory contact at the appropriate regulator orally by close of business two business days after the business day for which the backtesting exception occurred. Within five business days following the end of each Month, the firm must submit to the appropriate regulator a written account of the previous Month'sbacktesting exceptions (if any). This explanation must include the causes of the backtesting exceptions,
(1) This paragraph gives guidance on the backtesting calculation and reporting process in BIPRU 7.10.96R - BIPRU 7.10.104R.(2) Let the day on which the loss referred to in BIPRU 7.10.100R is made be day n. The value-at-risk measure for that day will be calculated on day n-1, or overnight between day n-1 and day n. Profit and loss figures are produced on day n+1, and backtesting also takes place on day n+1. The firm's supervisor should be notified of any backtesting exceptions
(1) This paragraph gives guidance on the process for excluding backtesting exceptions as referred to in BIPRU 7.10.103R.(2) The appropriate regulator will respond flexibly to backtesting exceptions. However, the appropriate regulator's starting assumption will be that a backtesting exception should be taken into account for the purpose of the calculation of plus factors. If the firm believes that a backtesting exception should not count for that purpose, then it should seek a
If a firm'sVaR model permission covers specific risk, the firm must validate its VaR model through backtesting aimed at assessing whether specific risk is being accurately captured. This backtesting must be carried out in accordance with the provisions of its VaR model permission. If the VaR model permission provides for this backtesting to be performed on the basis of relevant sub-portfolios, these must be chosen in a consistent manner.
Specific risk backtesting involves the backtesting of a standalone specific riskVaR measure against a profit and loss series determined by reference to exposure risk factors categorised as specific risk. Alternatively specific risk backtesting may take the form of regular backtesting of trading books and portfolios that are predominantly exposed to risk factors categorised as specific risk. The precise requirements for specific risk backtesting will be specified in the firm'sVaR
Where backtesting reveals severe problems with the basic integrity of the VaR model, the appropriate regulator may withdraw model recognition. In particular, if ten or more backtesting exceptions are recorded in a 250 business day period, the appropriate regulator may apply a plus factor greater than one or the appropriate regulator may consider revoking a firm'sVaR model permission. The appropriate regulator may also consider revoking a firm'sVaR model permission if ten or more
A firm must perform backtesting against a hypothetical profit and loss figure3 with respect to each business day. A hypothetical profit and loss figure3 for a business day means the hypothetical profit and loss figure3 that would have occurred for that business day if the portfolio on which the VaR number for that business day is based remained unchanged.3333
(1) A hypothetical profit and loss figure3 is based on the day's change in the value of the same portfolio that was used to generate the value-at-risk forecast.3(2) [deleted]33(3) The firm may also need to calculate a hypothetical profit and loss figure3 in order to produce profit attribution reports and to analyse the cause of backtesting exceptions.3
The table in BIPRU 7.10.125R sets out the plus factors to be added to the minimum multiplication factor, for VaR and stressed VaR,3 for any business day. It is based on the number of backtesting exceptions that occurred during the backtesting period as referred to in BIPRU 7.10.96R (Backtesting: Basic testing requirements) ending three business days preceding the business day for which the model PRR is being calculated.
Table: Backtesting plus factors
This table belongs to BIPRU 7.10.124R
Zone |
Number of recorded exceptions |
Plus factor |
Green |
4 or less |
0.00 |
Yellow |
5 |
0.40 |
6 |
0.50 |
|
7 |
0.65 |
|
8 |
0.75 |
|
9 |
0.85 |
|
Red |
10 or more |
1.00 |
A VaR model that correctly predicts a one-tailed 99% confidence level is expected to produce, on average, 2.5 backtesting exceptions every 250 days. Random events may cause the number of backtesting exceptions actually observed to vary. The plus factor system is designed to take this into account. Hence plus factors are only imposed on the firm if it has five or more recorded backtesting exceptions. Therefore, where a backtesting exception appears to be caused simply by chance,
A firm must, no later than the number of business days after the end of each quarter specified in the VaR model permission for this purpose, submit, in respect of that quarter, a report to the appropriate regulator about the operation of the VaR model, the systems and controls relating to it and any changes to the VaR model and those systems and controls. Each report must outline as a minimum the following information in respect of that quarter:(1) methodological changes and developments
A firm may change its VaR model to such extent as it sees fit, except that it must not make a change that (either on its own or together with other changes since the date of VaR model permission) would:(1) be inconsistent with VaR model permission or BIPRU 7.10; or(2) mean that backtesting in accordance with BIPRU 7.10 and the VaR model permission would result in the use of data that is inappropriate for the purposes of measuring the performance of the VaR model.
An authorised fund manager carrying out due diligence for the purpose of the rules in this section should make enquiries or otherwise obtain information needed to enable him properly to consider:(1) whether the experience, expertise, qualifications and professional standing of the second scheme's investment manager is adequate for the type and complexity of the second scheme;(2) the adequacy of the regulatory, legal and accounting regimes applicable to the second scheme and its
(1) An authorised fund manager of a UCITS scheme or a UK UCITS management company of an EEA UCITS scheme must adopt adequate and effective arrangements, processes and techniques in order to:(a) measure and manage at any time the risks to which that UCITS is or might be exposed; and(b) ensure compliance with limits concerning global exposure and counterparty risk, in accordance with COLL 5.2.11B R (Counterparty risk and issuer concentration) and COLL 5.3 (Derivative exposure).(2)
If backtesting indicates that the CCR internal model method model is not sufficiently accurate, the appropriate regulator may revoke a firm'sCCR internal model method permission or take appropriate measures to ensure that the model is improved promptly. Measures taken by the appropriate regulator may include the use of its own-initiative power to require the firm to hold more capital resources.[Note: BCD Annex III Part 6 point 42 (part)]