Any gain arising to any person in the course of dealing in commodity or financial futures or in qualifying options, which apart from this section would constitute profits or gains chargeable to tax under Schedule D otherwise than as the profits of a trade, shall not be chargeable to tax under that Schedule.

In this section “commodity or financial futures” and “qualifying options” have the same meaning as in section 72 of the [1985 c. 54.] Finance Act 1985, and the reference to a gain arising in the course of dealing in commodity or financial futures includes any gain which is regarded as arising in the course of such dealing by virtue of subsection (2A) of that section.