Distributed matching system
First Claim
1. A matching system for trading instruments in which bids are automatically matched against offers for given trading instruments for automatically providing matching transactions in order to complete trades for said given trading instruments, said system comprising a host computer means for maintaining a host book database comprising all of the active bids and offers in the system by trading instrument;
- a transaction originating keystation means for providing a bid on a given trading instrument to said system for providing a potential matching transaction; and
network means for interconnecting said host computer means, said transaction originating keystation means and said counterparty keystation means in said system for enabling data communications there between, both said transaction originating keystation meand and said counterparty keystation means for said potential matching transaction each having an associated local database keystation book having an associated data storage structure and comprising a subset of said host book, said host computer means dynamically determining said local data base data storage structure, the content of each of said keystation books having an associated display depth range dynamically controllable by said host computer means and being dynamically updatable by transaction update broadcast messages received from said host computer means through said network means, said transaction originating keystation means and said counterparty keystation means comprising means responsive to said received transaction dynamic update broadcast messages for updating said associated keystation books and further comprising means for providing directed messages to said host computer means corresponding to said bid and said offer, respectively, said directed messages updating said host book, said host computer means comprising means for conditionally providing said transaction broadcast update messages to said keystation means in response to the presence of an update condition, said update condition comprising updating of said host book and said received bid or offer having a relative value compared with other bids or offers within said host book which is within said keystation book dynamically controllable display depth range of relative values;
whereby controllable subsets of a distributable system trading book may be selectively provided to trading keystations in said matching system from the host for dynamically controllably masking the available trading market.
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Accused Products
Abstract
A matching system for trading instruments is provided in which bids are automatically matched against offers for given trading instruments for automatically providing matching transactions in order to complete trades for the given trading instruments in which controllable subsets (110, 112) of a distributable system trading book (118) may be selectively provided to trading keystations (24) in the matching system from the host computer (20) or central system for dynamically controllably masking the available trading market. The system comprises the host computer (20) for maintaining a host book data base (118) comprising all of the active bids and offers in the system by trading instrument, a transaction originating keystation (24a) at a client site (26) for providing a bid on a given trading instrument to the system for providing a potential matching transaction, a counterparty keystation (24b) for providing an offer on the given trading instrument involved in the potential matching transaction, and a network (22) for interconnecting the host computer (20), the transaction originating keystation (24a) and the counterparty keystation (24b) in the system for enabling data communication therebetween. Both the transaction originating keystation (24a) and the counterparty keystation (24b) each have an associated local data base keystation book (110, 112) comprising a subset of the host book (118). The content of each of the keystation books (110, 112) has an associated display depth range which is dynamically controllable by the host computer (20) and is dynamically updatable by transaction update broadcast messages (132) received from the host computer (20) through the network (22) which is preferably transparent to the transactions communicated.
1646 Citations
57 Claims
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1. A matching system for trading instruments in which bids are automatically matched against offers for given trading instruments for automatically providing matching transactions in order to complete trades for said given trading instruments, said system comprising a host computer means for maintaining a host book database comprising all of the active bids and offers in the system by trading instrument;
- a transaction originating keystation means for providing a bid on a given trading instrument to said system for providing a potential matching transaction; and
network means for interconnecting said host computer means, said transaction originating keystation means and said counterparty keystation means in said system for enabling data communications there between, both said transaction originating keystation meand and said counterparty keystation means for said potential matching transaction each having an associated local database keystation book having an associated data storage structure and comprising a subset of said host book, said host computer means dynamically determining said local data base data storage structure, the content of each of said keystation books having an associated display depth range dynamically controllable by said host computer means and being dynamically updatable by transaction update broadcast messages received from said host computer means through said network means, said transaction originating keystation means and said counterparty keystation means comprising means responsive to said received transaction dynamic update broadcast messages for updating said associated keystation books and further comprising means for providing directed messages to said host computer means corresponding to said bid and said offer, respectively, said directed messages updating said host book, said host computer means comprising means for conditionally providing said transaction broadcast update messages to said keystation means in response to the presence of an update condition, said update condition comprising updating of said host book and said received bid or offer having a relative value compared with other bids or offers within said host book which is within said keystation book dynamically controllable display depth range of relative values;
whereby controllable subsets of a distributable system trading book may be selectively provided to trading keystations in said matching system from the host for dynamically controllably masking the available trading market. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
- a transaction originating keystation means for providing a bid on a given trading instrument to said system for providing a potential matching transaction; and
Specification