Section 984 | Meaning of “financial instrument”
From legislation.gov.uk
(1)In this Part “financial instrument” includes—
(a)any money,
(b)any shares or securities,
(c)an option, future or contract for differences if its underlying subject-matter is (or is primarily) one or more financial instruments, and
(d)an instrument the underlying subject-matter of which is (or is primarily) creditworthiness.
(2)For the purposes of subsection (1) if the effect of an instrument depends on an index or factor, the “underlying” subject-matter of the instrument is the matter by reference to which the index or factor is determined.