amount means— (1) except as provided in paragraph (2), the fair market value of the security (determined as of the time of the covered transaction), and (2) in the case of any payment described in subsection (h), the amount of such payment. (d) Covered transaction For purposes of this section, the term covered transaction means— (1) except as provided in paragraph (2), any purchase if— (A) such purchase occurs or is cleared on a facility located in the United States, or (B) the purchaser or seller is a United States person, and (2) any transaction with respect to a security described in subparagraph (D), (E), or (F) of subsection (e)(1), if— (A) such security is traded or cleared on a facility located in the United States, or (B) any party with rights under such security is a United States person. (e) Security and other definitions For purposes of this section— (1) In general The term security means— (A) any share of stock in a corporation, (B) any partnership or beneficial ownership interest in a partnership or trust, (C) any note, bond, debenture, or other evidence of indebtedness, other than a State or local bond the interest of which is excluded from gross income under section 103(a), (D) any evidence of an interest in, or a derivative financial instrument with respect to, any security or securities described in subparagraph (A), (B), or (C), (E) any derivative financial instrument with respect to any currency or commodity including notional principal contracts, and (F) any other derivative financial instrument any payment with respect to which is calculated by reference to any specified index. (2) Derivative financial instrument The term derivative financial instrument includes any option, forward contract, futures contract, notional principal contract, or any similar financial instrument. (3) Specified index The term specified index means any one or more of any combination of— (A) a fixed rate, price, or amount, or (B) a variable rate, price, or amount, which is based on any current objectively