A computer network and method for electronically trading combinations of
derivatives. One preferred method of trading includes providing quotes
information to a central server, and determining indicative quotes for
combination trades, and providing the non-binding, indicative quotes to
market participants (which typically includes subscribers, but may also
include market makers). A participant may then submit an e-RFQ, which is
a request for a binding quote for the combination of derivatives. Market
Makers may then elect to submit a binding quote for the corresponding
derivative combination. Market participants may then elect to enter a
binding order.