security
(2) Security defined The term “security” means any— (A) share of stock in a corporation; (B) partnership or beneficial ownership interest in a widely held or publicly traded partnership or trust; (C) note, bond, debenture, or other evidence of indebtedness; (D) interest rate, currency, or equity notional principal contract; (E) evidence of an interest in, or a derivative financial instrument in, any security described in subparagraph (A), (B), (C), or (D), or any currency, including any option, forward contract, short position, and any similar financial instrument in such a security or currency; and (F) position which— (i) is not a security described in subparagraph (A), (B), (C), (D), or (E), (ii) is a hedge with respect to such a security, and (iii) is clearly identified in the dealer’s records as being described in this subparagraph before the close of the day on which it was acquired or entered into (or such other time as the Secretary may by regulations prescribe). Subparagraph (E) shall not include any contract to which section 1256(a) applies.