PET - Plain English Taxonomy

Attribute: CS00907
Concept:
Label: Internal Model Method - Value-at-Risk Method - Equity Positions - Scaled Average VaR
Concept Guidance:
This is the scaled average value at risk (VaR) for positions giving rise to equity position risk, as determined in accordance with relevant prudential standards. This represents the average VaR, calculated over the most recent 60 trading days prior to and including the relevant date, multiplied by the scaling factor applicable.Equity positions include on and off-balance sheet exposures which are affected by changes in Equity prices. This includes holdings of, or positions in:     - ordinary shares, whether voting or non-voting;     - convertible securities that behave like equities;     - commitments to buy or sell equity securities; and     - any other instruments that exhibit market behaviour similar to equities.VaR, or Value at Risk, is a technique used to estimate the likelihood of losses in a portfolio, based on the analysis of historical price movements and volatilities, over a specified observation period.For the purposes of this item the amount reported is the average of the 99% ten-day VaR number calculated daily over the relevant period. A 99% ten-day VaR represents a simulated mark-to-market loss for which there is a 1% probability of occurrence over the next ten days, assuming there is no trading of the portfolio.The scaling factor consists of a multiplication factor and a plus factor, as determined in accordance with relevant prudential standards. The multiplication factor is set for each reporting party by APRA, and is subject to a minimum of three. A plus factor may also be required by APRA. This factor relates directly to back-testing results from the most recent 250 trading days prior to and including the relevant date. 
Dimensions
Dimension Member Description
(SubPortfolioContainingSpecificRisk)
This dimension categorises information reported based on the sub-portfolio and the presence of specific risk factors within the sub-portfolio, as determined in accordance with relevant prudential standards.
The information reported relates to the sub-portfolio of exposures which contain specific risk. This is applicable where the reporting party is calculating the specific risk modelling surcharge by identifying sub-portfolios that contain specific risk. Specific risk represents the risk that the value of a security, or instrument, will change due to issuer-specific factors. It applies to interest rate and equity positions related to a specific issuer.