Automated Trading Systems – Build Scale, Leverage, And Profits

Introduction to Automated Trading Systems

Automated Trading Systems (abbreviated ATS) are computer programs that execute buy and sell orders in financial markets automatically, following predetermined algorithms. Such systems bring precision, discipline, and efficiency to trading by mostly eliminating emotional biases, ensuring timely execution, and allowing for 24/7 trading.

ATS also offer the benefits of backtesting, enabling traders to refine strategies, and diversification by managing multiple assets simultaneously. You can leverage and build scale. These systems reduce labor costs and provide a powerful tool for traders and investors seeking to optimize their trading strategies.

What percentage of trading is automated and algorithmic? According to a report, algorithmic trading contributed nearly 60-73% of all U.S. equity trading in 2018. 

This article is partly written by AI and partly by us. The article is edited and fact checked. 

History and Evolution of Automated Trading

Automated trading, the use of computer algorithms to execute financial transactions, has evolved significantly over time.

Historically, trading was a manual process. However, in the 1970s, electronic trading platforms emerged, speeding up order execution. For example, Ed Seykota was one of the pioneers in automated trading. 

The real shift came in the 1980s and 1990s with the rise of algorithmic trading, where computers could analyze market data and execute trades autonomously. This was also when S&P 500 futures started trading (1982) and changed the stock markets. 

Technology has been instrumental in this evolution. High-speed internet, powerful computers, and advanced data tools have fueled the development of sophisticated algorithms. Machine learning and AI have further enhanced automated trading during the latter years.

Today, automated trading systems are prevalent, offering speed and efficiency benefits, but also sometimes raising concerns about market stability. In essence, automated trading’s history reflects a shift from manual to algorithmic methods, shaped by ongoing technological advancements. Even small retail traders can use automated and mechanical trading to their advantage. 

How Automated Trading Systems Work

Automated Trading Systems are computer-based programs designed to execute trading orders in with minimal human intervention. They rely on algorithms to make trading decisions, execute trades, and manage portfolios. Here’s a brief overview:

  1. Explanation of Algorithmic Trading: Algorithmic trading, also known as algo trading,  uses predefined mathematical models and rules to automate the process of buying and selling financial assets, such as stocks, currencies, or commodities, normally based on a lot of backtesting beforehand. Algorithms analyze market data, identify trading opportunities, and execute orders at optimal prices and speeds. This approach aims to remove human emotions from trading, increase efficiency, and improve risk management.
  2. Components of an Automated Trading System: a. Data Feed: Automated trading systems rely on real-time market data, including price quotes, order book data, and news feeds. This information is essential for making informed trading decisions. The good thing is that most of these products are very cheap.

b. Algorithm: The core of an ATS is the trading algorithm, which is a set of rules and logic programmed to determine when to enter or exit trades. Algorithms can be based on various strategies, such as trend-following, mean reversion, or statistical arbitrage. As mentioned, these rules are not taken from thin air or from the a**, but based on many hours (months!) of backtesting. 

c. Order Execution: ATS send trading orders to the market electronically through direct market access (DMA) or via brokers. The system’s speed and efficiency in executing orders are critical for achieving desired outcomes.

d. Risk Management: ATS incorporate risk management parameters to control trade size, limit losses, and adjust strategies in