Patent ID: 7870060

Claim:
A computer-assisted trading system, comprising: a data storage device configured to store information associated with a book of open positions each associated with a bundled financial instrument, the bundled financial instrument including a linear combination of a plurality of standardized contracts associated with an obligation to exchange an asset at a set price on a future date, the open position of the bundled financial instrument being convertible, by a conversion module, into constituent linear combinations of a plurality of standardized contracts, where the open position of the bundled financial instrument appears on the book as a single financial instrument after execution, the open position further remaining until the earlier of a maturity of the bundled financial instrument, conversion of the bundled financial instrument into constituent parts of the linear combination of a plurality of standardized contracts, or combination of the bundled financial instrument with other bundled financial instruments to form a combined open position; and the conversion module responsive to requests of holders of corresponding open positions to convert the bundled financial instrument into constituent parts of the linear combination of a plurality of standardized contracts.