(a)a company is a party to a derivative contract in an accounting period,
(b)the derivative contract is a plain vanilla contract,
(c)the contract is an option,
(d)rights to acquire shares are comprised in the contract, and
(e)shares are acquired as a result of the exercise of any of those rights in the accounting period.
667(2) For the purpose of calculating any chargeable gain accruing to the company on a disposal by it of all the shares so acquired, the sums allowable as a deduction under section 38(1)(a) of TCGA 1992 (acquisition costs) are–