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CA-9.7.7

Conventional bank licensees with large swap books may use alternative formulae for these swaps to calculate the positions to be included in the maturity or duration ladder. One method would be to first convert the cash flows required by the swap into their present values. For this purpose, each cash flow must be discounted using the zero coupon yields, and a single net figure for the present value of the cash flows entered into the appropriate time-band using procedures that apply to zero or low coupon (less than 3%) instruments. An alternative method is to calculate the sensitivity of the net present value implied by the change in yield used in the duration method (as set out in Section CA-9.5), and allocate these sensitivities into the appropriate time-bands.

January 2015