Simple FIX Simulator with Python and QuickFIX

This repository contains a simple implementation of a FIX (Financial Information eXchange) simulator using Python and the QuickFIX library. The simulator is designed to demonstrate the basic functionality of a market maker application.

Introduction

The provided code is a basic market maker application that can handle various FIX messages such as New Order Single, Order Cancel Request, and Market Data Request. It simulates the behavior of a market maker by sending back appropriate responses and updating market data.

Getting Started

1. Install Python 3.9 (https://www.python.org/downloads/)
2. Install QuickFIX (https://github.com/quickfix/quickfix) by following the installation instructions provided in the QuickFIX repository.
3. Clone this repository or download the code.
4. Create a Server.cfg and client.cfg configuration file in the root directory of the project.
5. Run the market_maker.py and client.py script using Python to execute the Command Line version:

python market_maker.py
python client.py

6.Run the main.py to work with the GUI version:

python main.py

Tools and Libraries

• Python 3.9: The python version used for the implementation.
• QuickFIX: A C++ library for FIX protocol development and message parsing.
• Make sure to download 'FIX44.xml' and add it to your working directory.

Order Types supported

Along with the regular market orders placed by users in the format: [side] [USD/BRL] [Qty] [Price] , This application now supports three other Market order types- Stop Orders, Limit Orders and Stop-Limit Orders.

CLI Menu

A simple menu is displayed after the FIX application has started. You can use this menu to perform various actions in the CLI version (Market Maker and Client):

• buy -> Place Buy Order

• sell -> Place Sell Order

• subscribe -> Subscribe to Market Data

• unsubscribe -> Cancel Market Data Subscription

• cancel -> Order Cancel Request

• status -> Order Status Request

• quit -> Logout and Exit

  GUI Menu

Users can now place orders using commands in the form:

[side-buy/sell] [USD/BRL] [qty] [amount]

EXAMPLES

Users can now enter commands like:

( For buy/sell, price can also be added seperately in the CLI Version for regular market orders)

• buy USD/BRL 100 1.10
• sell USD/BRL 100 limit
• buy USD/BRL 100 stopPrice 1.0 1.5
• sell USD/BRL 100 stop_limit 1.10
• buy USD/BRL 100 stop_limit 2.4 2.3
• sell USD/BRL 100 stop_limit 2.3 2.4

Enter the corresponding command or action to perform the desired operation.