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Ultra Low Latency Market Making System for HFT (C++)
Below is a conceptual framework for an ultra low latency market making system combining futures and options. This is a simplified version that would need significant customization for a billion-dollar HFT firm.
Bryan Downing
3 days ago7 min read


Building a High Frequency Trading Engine: A Deep Dive into .NET 8, Rithmic API, and Valkey Architecture
The Rithmic High Frequency Trading Engine System is a high-performance, distributed trading infrastructure designed to bridge the gap between the Rithmic RAPI (a C++ based API with a .NET wrapper used for futures trading) and modern, custom algorithmic strategies.
Bryan Downing
Dec 23, 20259 min read


Building a Real-Time Pub Sub Messaging System with SQLite and .NET: A Complete Developer's Guide
This comprehensive guide documents the complete journey of building a functional Pub/Sub messaging system using SQLite as the message broker and .NET as the development framework.
Bryan Downing
Dec 22, 202512 min read


What Is a Rithmic API Conformance Test?
Before a trading application is allowed to connect to live markets through Rithmic, it must typically pass a Rithmic API conformance test.
Bryan Downing
Dec 19, 20257 min read


Launching a Professional-Grade Futures Trading Platform with Rithmic API Integration
After months of rigorous backtesting, parameter optimization, and simulated execution in controlled environments, we stand at the threshold of a significant milestone: the deployment of a live futures trading platform infrastructure powered by the Rithmic API
Bryan Downing
Dec 18, 202512 min read


Code Break: Rithmic Option Chain Retrieval System
This document provides a comprehensive analysis of a sophisticated financial data retrieval system designed to interface with the Rithmic option chain trading platform.
Bryan Downing
Dec 18, 20255 min read


The Unbreakable Code: Inside the Unparalleled, Unmatched, and Unreplicable Success of Jim Simons and Renaissance Technologies
. Renaissance Technologies, and its jewel, the Medallion Fund, is not just the most successful hedge fund ever; it is an intellectual Everest, a black box of such staggering profitability that its performance charts resemble a glitch in the financial matrix.
Bryan Downing
Dec 10, 20259 min read


Building a Professional-Grade Trading Australia Dollar Simulator: A Complete Technical Breakdown
This article provides an exhaustive breakdown of a comprehensive trading simulator designed around the Volume Weighted Average Price deviation strategy, targeting the Micro E-mini S&P 500 futures contract.
Bryan Downing
Dec 10, 202514 min read


Building a Real-Time Ethereum Futures Trading Simulator with Hurst Exponent Analysis
This isn't merely an academic exercise—it's a professional-grade simulation environment that models real market behavior, implements advanced statistical analysis, manages positions with institutional rigor, and provides comprehensive performance analytics.
Bryan Downing
Dec 9, 202522 min read


AI Quant Revolution: From PDF to C++ High-Frequency Trading Bot in a Single Workflow
For decades, the world of quantitative finance, particularly C++ high-frequency trading bot, has been an exclusive club. It was the domain of elite QI quant institutions with cavernous server rooms, teams of PhDs in physics and mathematics, and budgets stretching into the millions.
Bryan Downing
Dec 5, 202513 min read


Advanced Quantitative Strategies in High Frequency Trading Hidden Markov Models and Order Flow Toxicity Detection
Abstract High-frequency trading (HFT) firms employ sophisticated quantitative models to gain an edge in ultra-fast markets. Among these, high frequency trading Hidden Markov Models (HMMs) for regime detection and order flow toxicity analysis are critical for dynamic strategy adaptation. This paper explores cutting-edge techniques used by top HFT firms, focusing on HMM-based regime switching and advanced toxicity detection methods beyond conventional microprice forecasti
Bryan Downing
Dec 4, 20251 min read


Comprehensive Futures Contract Analysis & Forecast
I've analyzed four futures contracts using advanced quantitative techniques including volatility modeling, momentum decomposition, microstructure analysis, and regime detection. Below is a detailed analysis of each contract followed by a comparative ranking with forecasted portfolio metrics. 1. S&P 500 E-mini (SPZ5) - 15 Minute RTH Statistical Profile The contract spans from November 5 to December 2, 2025, with the most recent close at 6842.75. Over this period, price ranged
Bryan Downing
Dec 3, 20259 min read


Unstoppable Ascent: Gold and Silver Rally on Strong Global Market Sentiment
The timeless allure of a gold and silver rally has once again captured the global spotlight, as these precious metals embark on a remarkable rally, fueled by a potent cocktail of strong global market sentiment.
Bryan Downing
Nov 30, 202514 min read


Alpha Protocol: A Quant High-Probability Market Instruments
Our objective is to filter this broad list down to the absolute highest-potential opportunities, employing a multi-factor quantitative model focusing on Sharpe Ratios, Beta sensitivity,
Bryan Downing
Nov 29, 202510 min read


Why C#/.NET is the Unrivaled Engine for the Excel-Integrated Digital Arbitrageur
for any serious trading application where performance and reliability are paramount, C#/.NET is the unequivocally superior path.
Bryan Downing
Nov 27, 202516 min read


The Digital Arbitrageur: Mastering Automated Trading with Excel Integration
The Digital Arbitrageur: Mastering Automated Trading with Excel Integration with .Net or C++
Bryan Downing
Nov 26, 202524 min read


The Architecture of Speed: Demystifying CME Aurora, Co-location, and Trading Infrastructure
The Architecture of Speed: Demystifying CME Aurora, Co-location, and Trading Infrastructure
Bryan Downing
Nov 26, 202514 min read


Comprehensive White Paper on the Structural Incompatibility Between Rithmic Infrastructure and Modern Trade Verification Systems
The Technical Impossibility of "Verified" Rithmic Futures & Options Trade Verification Journaling
Bryan Downing
Nov 25, 202510 min read


The Iron Gatekeeper: The High Cost of Low Latency in the Rithmic API Ecosystem
Introduction: The Ferrari Engine with the Wooden Steering Wheel called Rithmic API
Bryan Downing
Nov 20, 202511 min read


Building an AI Trading Dashboard with Python for Futures Markets
The Ultimate Guide: Building an AI Trading Dashboard with Python for Futures Markets
Bryan Downing
Nov 12, 202522 min read
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