BVCandleStream
- Utilities
-
Katsura Yamanouchi
We are MT5 users.
Developers of Expert Advisors, Indicators, Scripts, Services, and Classes.
Bob Volman's price action strategy inspires us and aims to incorporate his methods into MT5.
Please enjoy exploring our code! - Version: 1.20
- Updated: 15 December 2025
Product name: BVCandleStream
Overview
Background service that automatically creates custom tick-based symbols (equal-tick bars) for scalping and price action analysis.
It converts raw ticks of standard symbols into custom bars with a fixed number of ticks per bar, so you can apply any standard MT5 indicators or EAs to these synthetic tick charts.
Key Features
1. Tick-Based Bar Generation
- Monitors the symbol of the open chart and automatically groups ticks into bars at the specified count ( InpTicksPerBar )
- Allows selection among Bid, Ask, or Mid as the price basis
- Displays TickVolume to visually assess the degree of bar formation
2. Seamless Historical + Real-Time Linking
- Builds historical bars by tracing back through past ticks
- Immediately switches to real-time ticks once history generation completes, keeping bars updated continuously
3. Chart Display via Custom Symbols
- Standard indicators can be applied
4. Multi-Chart Support
- Automatically scans all open MT5 charts and launches tasks per target symbol
- Custom symbol names are centrally managed with a prefix (e.g., "BV_" )
Input parameters
How to Use
Step 1: Install the Service
- Place BVCandleStream.ex5 in the MQL5/Services or Expert Adviser folder of MetaTrader5.
- Restart the terminal and confirm it appears under “Services” in the Navigator.
Step 2: Configure Parameters
Step 3: Start the Service
- Open charts for the target instruments (any timeframe).
- Start the service; it automatically detects the symbols of open charts and creates the corresponding custom symbols.
The symbol name will be: prefix + original symbol + Ticks + ticks-per-bar (e.g., BV_EURUSD_Ticks144 ). - In the terminal, go to “File > New Chart > Custom,” select the custom symbol, and open the chart.
Change the period to 1M (tick charts become distorted on other periods).
Step 4: Auto-Start on Reboot / Stopping the Service
- If the service remains running when MT5 or the PC restarts, it automatically regenerates the previously created custom symbols at next launch.
- To stop the service, open the Navigator, select Services > BVCandleStream , right-click, and choose “Remove.”
- Strategy Tester: When testing EAs on the generated custom symbols, use "Every tick" or "real ticks" modes. Simplified tick generation modes ("Open prices only", etc.) are not supported.
Use Cases
- Tick-based analysis: Ideal for price action studies using equal-volume or fixed-tick bars.
- Pre-processing for algorithmic trading: Bars output to a custom symbol can be consumed by indicators/EAs.
- Monitoring multiple instruments: Automatically scans open charts, keeping management simple for traders handling many pairs.

