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MT4 vs. MT5: Which Trading Platform is Best for Algorithmic Traders?

April 2, 2025
roger_admin

MetaTrader 4 (MT4) and MetaTrader 5 (MT5) are two of the most popular trading platforms used by algorithmic traders. While many assume that MT5 is simply an upgraded version of MT4, the reality is that these platforms serve different purposes. For algorithmic traders, choosing the right platform is crucial, as it affects trade execution, strategy optimization, and overall trading efficiency. This article explores the differences between MT4 and MT5 and explains why MT4 remains the preferred choice for most traders.

Understanding the Core Differences Between MT4 and MT5

MT4 was designed primarily for forex trading, offering a stable and efficient environment for executing trades. However, it could still operate trades for stocks, commodities, and futures. MT5, on the other hand, was developed as a multi-asset platform to accommodate stocks, commodities, and futures trading in addition to forex.

Here are some of the key differences:

  • Programming Language: MT4 uses MQL4, while MT5 uses MQL5. These languages are not backward-compatible, meaning custom indicators and Expert Advisors (EAs) developed for MT4 will not work on MT5 without modification.
  • Order Execution Models: MT5 includes more order types and execution modes, but MT4 remains superior for forex trading due to its optimized processing algorithms.
  • Market Depth & Trading Features: MT5 includes built-in depth of market (DOM) features, which are useful for traders who rely on order book visibility.

Despite these differences, MT4 continues to dominate algorithmic trading due to its established market presence, greater liquidity, and a broader selection of tools.

Why MT4 Remains the Best Choice for Algorithmic Traders

1. MT4 Allows Seamless Demo and Live Trading Accounts

Both MT4 and MT5 support demo and live accounts, allowing traders to practice and backtest strategies without financial risk. However, MT4 remains popular among algorithmic traders due to its long-standing ecosystem, simplified interface, and vast library of Expert Advisors (EAs) and custom indicators. For traders just starting out or testing automated strategies, the MT4 platform provides a user-friendly environment with strong community support and widespread broker compatibility.

If you're looking to start with a reliable broker, we recommend opening a free lifetime demo account with Vantage here!

2. Longevity & Market Support – MT4 Has the Most Broker & Server Availability

MT4 has been the industry standard for over two decades, making it the most trusted platform for traders. Because of its long history, brokers have invested heavily in MT4 servers, ensuring faster execution and stable connections for traders.

Since MT5 adoption has been slower, many brokers do not fully support it, leading to fewer liquidity providers and less efficient execution for forex traders. Traders who prioritize stability and execution speed should stick with MT4, as it remains the most broker-friendly platform.

3. MT4 Has the Largest Collection of Trading Tools & Customization Options

Another major advantage of MT4 is its extensive ecosystem of Expert Advisors (EAs), indicators, and scripts. Because MT4 has been around for so long, traders have access to thousands of third-party tools that enhance trading performance.

Some proprietary tools, such as Algo Forest’s Expert Advisors (EAs), Indicators, and Scripts are optimized specifically for MT4’s ecosystem. Since MT5 uses a different programming language (MQL5), many of these tools cannot be used or easily migrated, making MT4 the superior choice for traders who rely on customized trading solutions. However, Algo Forest is developing and optimizing their trading tools for MT5 in the near future.

4. MT4 Has the Most Liquidity & Faster Trade Execution

Liquidity is one of the most critical factors for algorithmic traders, as it affects spread, execution speed, and overall profitability. Because MT4 has been the dominant trading platform for years, it has the highest liquidity, making it easier for traders to execute large-volume trades with minimal slippage.

More liquidity means:

  • Tighter spreads, reducing trading costs.
  • Faster order execution, which is essential for algorithmic strategies that rely on speed.
  • Better order filling, ensuring minimal slippage in volatile markets.

When Should Traders Consider MT5?

While MT4 remains the best choice for forex traders, there are specific situations where traders might consider MT5:

  • If they rely on built-in depth of market (DOM) features for order book visibility.
  • If they need additional timeframes and an integrated economic calendar for fundamental analysis.

Conclusion

For most algorithmic traders, MT4 remains the superior choice due to its flexibility, tool availability, and broker support. While MT5 offers new features, its lack of demo trading, lower liquidity, and limited broker support make it less ideal for forex algo trading.

Ready to maximize your trading efficiency? Explore Algo Forest’s Expert Advisors, indicators, and trading solutions today!

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