For the purposes of this Chapter, the following definitions apply:
‘risk class’ means one of the following seven categories:
general interest rate risk;
credit spread risk (CSR) for non-securitisation;
credit spread risk for securitisation not included in the alternative correlation trading portfolio (non-ACTP CSR);
credit spread risk for securitisation included in the alternative correlation trading portfolio (ACTP CSR);
‘sensitivity’ means the relative change in the value of a position, as a result of a change in the value of one of the relevant risk factors of the position, calculated with the institution's pricing model in accordance with Subsection 2 of Section 3;
‘bucket’ means a sub-category of positions within one risk class with a similar risk profile to which a risk weight as defined in Subsection 1 of Section 3 is assigned.