Abstract: A system, method and apparatus for creating and executing inter-exchange spread instruments, comprising a buy and a sell leg (or other variation of buys and/or sells) of two distinct global exchange traded instruments. A spread instrument price is set using an implied base price of a first leg based upon a current bid and offer of the first leg on a global exchange, an implied base price of a second leg based upon a current bid and offer of the second leg on a global exchange, a first leg weighting factor, a second leg weighting factor, and a volatility risk factor. When the spread instrument is traded, each underlying leg is automatically filled and confirmed pursuant to the customs and practices of the corresponding exchange and clearinghouse or clearing firm for the product associated with the leg.