Abstract: An exchange computer system for multicast communication on an exchange network, the computer system comprising: at least one communication interface configured to bridge communication between liquidity providers and at least one liquidity consumer; and a trading engine configured to perform operations of: receiving liquidity offers from liquidity providers having a range of transaction sizes; establishing a series of liquidity pools for the liquidity offers, each liquidity pool corresponding to a transaction size; filtering the liquidity offers in each liquidity pool such that a top-of-the-book offer from each liquidity pool is streamed to the at least one liquidity consumer using the multicast communication; in response to matching a transaction request with a liquidity offer, executing a transaction; and in response to executing the transaction, updating the liquidity pool accordingly so that data from the updated liquidity pool is streamed to the at least one liquidity consumers using the multicast communi