Skip to content
Go to file

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time


Philadelphia is a low-latency Financial Information Exchange (FIX) engine for the JVM.

You can use Philadelphia to connect to stock exchanges, brokerage firms, and other network endpoints that use the FIX protocol. You can also use it to provide your own services using the FIX protocol.

Philadelphia is designed to exhibit low and predictable latency. To achieve this, it supports non-blocking, zero-copy networking and does not allocate any memory on message reception or transmission. It can achieve 7.7 µs round-trip time (RTT) over the loopback interface.

Philadelphia requires Java Runtime Environment (JRE) 8 or newer.


See the latest release on GitHub.


Philadelphia contains the following libraries:

See the FIX Trading Community for the protocol specifications and Philadelphia Extras for additional FIX dialects.

Philadelphia contains the following applications:

  • Terminal Client is a simple console application for interacting with a FIX acceptor.

  • Code Generator is a simple console application for generating Philadelphia profiles for FIX dialects.

Philadelphia contains the following example applications:

Philadelphia contains the following test applications:

  • Performance Test contains microbenchmarks for the FIX protocol implementation.


For more information on Philadelphia:


Copyright 2015 Philadelphia authors.

Released under the Apache License, Version 2.0. See LICENSE.txt for details.

You can’t perform that action at this time.