Updated 09/05/2024
In force

Version from: 09/01/2024
Amendments
There is currently no Level 2 legal act based on or specifying Article 325ay.
Final Q&A 2020_5645
Published: 15/07/2022
Art. 325ay
Rejected Q&A 2023_6935
Published: 31/01/2024
Art. 325ay(2)
Final Q&A 2020_5469
Published: 15/07/2022
Art. 325ay(2)
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CRR ToolCapital Requirements Regulation (CRR)
Article 325ay

Article 325ay - Vega and curvature risk correlations

Article 325ay

Vega and curvature risk correlations

1.  

Between vega risk sensitivities within the same bucket of the general interest rate risk (GIRR) class, the correlation parameter ρkl shall be set as follows:.

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where:

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shall be equal to

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where α shall be set at 1 %, Tk and Tl shall be equal to the maturities of the options for which the vega sensitivities are derived, expressed as a number of years; and

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is equal to

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, where α is set at 1 %,

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and

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shall be equal to the maturities of the underlyings of the options for which the vega sensitivities are derived, minus the maturities of the corresponding options, expressed in both cases as a number of years.
2.  

Between vega risk sensitivities within a bucket of the other risk classes, the correlation parameter ρkl shall be set as follows:

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where:

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shall be equal to the delta intra-bucket correlation corresponding to the bucket to which vega risk factors k and l would be allocated; and

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shall be set in accordance with paragraph 1.
3.  
With regard to vega risk sensitivities between buckets within a risk class (GIRR and non-GIRR), the same correlation parameters for γbc, as specified for delta correlations for each risk class in Section 4, shall be used in the vega risk context.
4.  
There shall be no diversification or hedging benefit recognised in the standardised approach between vega risk factors and delta risk factors. Vega risk charges and delta risk charges shall be aggregated by simple summation.
5.  
The curvature risk correlations shall be the square of corresponding delta risk correlations ρkl and γbc referred to in Subsection 1.