Understanding the meaning and benefits of the systematic trading system

Just as there are different ways to reach a particular destination, there are different approaches to achieving investment success. Systematic and discretionary trading are two broad approaches used to buy and sell securities with the aim of generating returns. This article explains what systematic trading is and how to become a systematic trader. 

What is a systematic trader?

A systematic trader is an individual who uses a predesigned and backtested trading strategy to buy and sell financial instruments such as stocks, futures, currencies, or commodities. Instead of relying on gut feelings or emotions, they use a systematic trading system built on predefined rules, quantitative analysis, and technology to make trading decisions. 

The system typically contains predefined rules for: 

• Entering a trade
• Exiting a trade
• Position sizing 
• Risk management  

Why do traders prefer systematic trading strategies?

Systematic trading offers several benefits, including: 

1. Reduced emotional bias: One of the biggest advantages of systematic trading is that it minimises the influence of greed and fear on decision-making. Trades are executed based on predefined rules rather than emotions. 
2. Faster execution: Many systematic trading systems can be automated, allowing trades to be executed more quickly and efficiently.  
3. Ability to backtest: Since systematic trading strategies are typically written in programming languages, they can be tested on historical data to assess how they would have performed under different market conditions. 
4. Scalability: When supported by technology, systematic trading strategies can analyse large amounts of market data and be applied across multiple securities simultaneously.
5. Consistency: As the system follows the same predefined rules, trading decisions remain consistent whenever the specified criteria are met.  

How to become a systematic trader: A step-by-step guide 

Step 1: Learn the basics of the market 

Understanding how financial markets function is a prerequisite to become a successful systematic trader. Learn about market structure, asset classes, order types, risk management, and other key concepts before developing a trading strategy. 

Step 2: Define a clear trading objective 

There are different styles of trading, and to choose the most suitable one, you must first define what you want to achieve through trading. While doing so, consider factors such as your risk tolerance, investment horizon, available capital, and expected returns.

Step 3: Choose a trading strategy 

Based on your trading objectives, you can choose from various systematic trading strategies, such as: 

• Trend following 
• Mean reversion
• Momentum 
• Statistical and quantitative strategies

Step 4: Define trading rules and implement risk management

 A systematic trading strategy should have clearly measurable rules, including: 

• Entry rules such as breakout trading, range-based setups, or volatility-based triggers
• Exit rules
• Stop-loss levels
• Position sizing guidelines 

Risk management measures such as stop-losses, position-sizing rules, diversification, and portfolio exposure limits help control potential losses and improve the strategy’s long-term sustainability.  

Step 5: Backtest the strategy 

Apply the strategy to historical market data to evaluate how it would have performed under various market conditions. Based on the results, you can make adjustments to improve its robustness. 

Step 6: Try paper trading

Before implementing the chosen strategy with real money, test it on simulated trading platforms. This helps traders understand whether the strategy performs as expected in live market conditions and provides an opportunity for further refinement.  

Step 7: Review and refine regularly

Review your strategy regularly and make improvements when required to ensure it remains aligned with changing market conditions. 

How do systematic trading strategies work?

• Systematic trading strategies use predefined, rule-based models to analyse market data and make trading decisions. 
• The process begins with developing a trading hypothesis, which is then translated into a strategy using indicators, statistical models, or other quantitative factors such as moving averages, price oscillators, or volatility measures. 
• Once the strategy is built, it is backtested on historical data to evaluate its effectiveness and identify potential weaknesses. 
• After backtesting, the strategy is refined and optimised, following which the system generates trading signals that can be executed manually or automatically through brokerage platforms. 
• The system also incorporates risk management tools such as stop-loss orders, position sizing, and exposure controls. 
• This structured approach enables traders to make consistent, data-driven decisions while reducing emotional bias.

Systematic trading vs discretionary trading

Conclusion

A systematic trader executes trades using predefined rules, placing little emphasis on emotions during the decision-making process. As a result, systematic trading can offer greater consistency and a more disciplined approach to risk management. To become a successful systematic trader, one must understand market fundamentals, develop a strategy with clearly defined rules, backtest and paper trade extensively, and continuously review and refine the process.