“swap” means an agreement that provides for
(a) an exchange of principal amounts,
(b) the obligation to make, and the right to receive, cash payments based upon the value, level or price, or on relative changes or movements of the value, level or price, of one or more underlying interests, which payments may be netted against each other, or
(c) the right or obligation to make, and the right or obligation to receive, physical delivery of an underlying interest instead of the cash payments referred to in paragraph (b);