System and method for coalescing market data at a network device
A network device coalesces data received from an exchange, and provides a user with the opportunity to receive fewer, but up-to-date, data updates from an exchange when duplicate prices become available or a large volume of prices becomes available suddenly. Accordingly, the trader can be assured of receiving non-duplicated prices that are fed at a rate that is cohesive with that trader's connection speed. The present invention is designed to conserve on bandwidth thereby increasing the likelihood that bandwidth will be available to receive desirable market information.
1. A method for distributing data for a tradeable object, the method comprising:
distributing via a network device at least part of a data stream for market updates to at least one client device, the at least part of the data stream being distributed at a selected rate for the at least one client device, where the at least part of the data stream for market updates includes coalesced market updates.
2. The method of claim 1 where the data stream comprises market updates for a tradeable object.
3. The method of claim 1 where the data stream is received at the network device at a first data rate.
4. The method of claim 3 where the network device comprises a data feed being configurable to transmit the market updates at a selected rate of a plurality of selectable data rates.
5. The method of claim 4 where the plurality of selectable data rates comprises the first data rate.
6. The method of claim 4 where the selected rate is associated with a subscription for the at least one client device.
7. The method of claim 4 where the selected rate is less than the first data rate.
8. The method of claim 1 where the network device comprises a gateway.
9. The method of claim 1 , further comprising generating the at least part of the data stream according to updating a first market update in the data stream with a second market update in the data stream.
10. The method of claim 9 where updating the first market update comprises replacing a value associated with the first market update in a stored data structure with a value in the second market update.
11. The method of claim 9 where updating the first market update comprises adding a new value from the second market update to a value associated with the first market update in a stored data structure.
12. The method of claim 1 , further comprising multicasting the at least part of the data stream for market updates to a plurality of client devices according to a respective subscription for each of the plurality of client devices.
13. The method of claim 1 , further comprising changing the selected data rate in response to detecting a predetermined event.
14. A non-transitory computer readable medium having computer executable instructions stored thereon which when executed cause a computer to carry out acts comprising:
distributing at least part of a data stream for market updates to at least one client device, the at least part of the data stream being distributed at a selected rate for the at least one client device, where the at least part of the data stream for market updates includes coalesced market updates.
15. The non-transitory computer readable medium of claim 14 where the data stream comprises market updates for a tradeable object.
16. The non-transitory computer readable medium of claim 14 where the data stream is received at a network device at a first data rate.
17. The non-transitory computer readable medium of claim 16 where the network device comprises a data feed being configurable to transmit the market updates at a selected rate of a plurality of selectable data rates.
18. The non-transitory computer readable medium of claim 17 where the plurality of selectable data rates comprises the first data rate.
19. The non-transitory computer readable medium of claim 17 where the selected rate is associated with a subscription for the at least one client device.
20. The non-transitory computer readable medium of claim 17 where the selected rate is less than the first data rate.
21. The non-transitory computer readable medium of claim 14 where the acts further comprise generating the at least part of the data stream according to updating a first market update in the data stream with a second market update in the data stream.
22. The non-transitory computer readable medium of claim 21 where updating the first market update comprises replacing a value associated with the first market update in a stored data structure with a value in the second market update.
23. The non-transitory computer readable medium of claim 21 where updating the first market update comprises adding a new value from the second market update to a value associated with the first market update in a stored data structure.
24. The non-transitory computer readable medium of claim 14 where the acts further comprise multicasting the at least part of the data stream for market updates to a plurality of client devices according to a respective subscription for each of the plurality of client devices.
25. The non-transitory computer readable medium of claim 14 where the acts further comprise changing the selected data rate in response to detecting a predetermined event.
26. A network device for distributing market information for a tradeable object comprising:
a data input configured to receive a data feed including market updates; and
a market data processor coupled with the data input and configured to generate coalesced market data according to the data input; and
at least one data output configured to distribute the coalesced market updates to at least one client device, the coalesced market data being distributed at a selected rate for the at least one at client device.