This section applies where a person ("the grantor") who has granted a traded option ("the original option") closes it out by acquiring a traded option of the same description ("the second option").
Any disposal by the grantor involved in closing out the original option shall be disregarded for the purposes of capital gains tax or, as the case may be, corporation tax on chargeable gains.
The incidental costs to the grantor of making the disposal constituted by the grant of the original option shall be treated for the purposes of the computation of the gain as increased by an amount equal to the aggregate of—
the amount or value of the consideration, in money or money's worth, given by him or on his behalf wholly and exclusively for the acquisition of the second option, and
the incidental costs to him of that acquisition.
In this section "traded option" has the meaning given by section 144(8).