Mass Index
Info
The Mass Index is a Indicator for MetaTrader 5 that metaquotesthe mass index is a technical indicator designed to identify potential trend reversals by monitoring the range between the highest and lowest prices. When the range expands, the Mass Index increases, and when it contracts, the index decreases.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Indicator works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Indicators folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Mass Index
1. Installation: Place your file in the MQL/Indicators folder via "Open Data Folder" and restart your terminal.
2. Loading: Find the indicator in the Navigator, drag it onto your chart, and configure the input parameters in the popup window.
3. Customization: Press Ctrl+I to open the indicator list, select your tool, and click "Properties" to change colors, levels, or visual styles.
4. Updating: Replace the old file in the Indicators folder with the new version and restart the platform to apply changes.
Frequently Asked Questions
Q: Why is my indicator not showing? A: Verify the file is in the MQL/Indicators folder, or try right-clicking the "Indicators" tree in the Navigator and clicking "Refresh."
Q: Do custom indicators slow down the platform? A: Too many complex indicators can impact performance; remove unused ones via the "Indicator List" (Ctrl+I).
Q: Can I use MT4 indicators on MT5? A: No, MQL4 and MQL5 are distinct languages; ensure the indicator is compiled specifically for your platform version.
What this tool does
MetaQuotesThe Mass Index is a technical indicator designed to identify potential trend reversals by monitoring the range between the highest and lowest prices.
Typical Use Case
This Indicator excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Indicator works on MetaTrader 5. Place the file in the MQL5/Indicators folder and restart the terminal.
Description & Settings
Related: Fractal Dimension Trend Strength Index - another powerful indicator for MetaTrader 5 traders.
MetaQuotesThe Mass Index is a technical indicator designed to identify potential trend reversals by monitoring the range between the highest and lowest prices. When the range expands, the Mass Index increases, and when it contracts, the index decreases.
Also recommended: multi-timeframe relative strength index (mtf rsi) indicator for mt4/mt5 - similar indicator with strong performance on MetaTrader 5.
This indicator was introduced by Donald Dorsey and is particularly useful for detecting a specific pattern known as the 'reversal bulge'. A reversal bulge occurs when the 25-period Mass Index initially surpasses 27 and subsequently drops below 26.5, indicating a high likelihood of a price trend reversal, regardless of the prevailing trend direction.
To determine whether the reversal bulge suggests a buy or sell signal, traders often employ a 9-period exponential moving average of prices. If the moving average is falling when the reversal bulge appears, it may signal a buying opportunity, while a rising moving average could indicate a potential sell signal.
The indicator utilizes the smoothalgorithms.mqh library classes, which should be copied to the terminal_data_folder\mql5\include directory. The implementation and usage of these classes are detailed in the 2026 article.
The Mass Index indicator was initially implemented in MQL4 and released on 08.02.2026.
Fig.1. Mass_Index Indicator
You may also like: institutional fractal dimension index (regime detector) - excellent alternative for indicator users on MetaTrader 5.
Source Code
#property copyright "robotfx"
#property link "https://robotfx.org"
#property version "1.00"
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_plots 1
#property indicator_type1 draw_line
#property indicator_color1 clrteal
#property indicator_style1 style_solid
#property indicator_width1 1.......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.