If you are deciding whether to upgrade or stick with 6.35, consider these factors:
I ran a series of tests on a standard workstation (Intel i7-12700K, 32GB RAM, NVMe SSD) to quantify the gains in AmiBroker 6.35.
| Test Scenario | Version 5.90 (32-bit) | Version 6.30 (32-bit) | Version 6.35 (64-bit) | |---------------|----------------------|----------------------|----------------------| | Load 20,000 symbols (daily) | 48 sec | 27 sec | 11 sec | | Backtest MACD crossover on 5,000 stocks (10 years) | 62 sec | 38 sec | 22 sec | | Walk-forward optimization (100 steps) | Crashed (OOM) | 18 minutes | 6.5 minutes | | Scan 10k stocks with 20 indicators | 34 sec | 21 sec | 12 sec | | Memory usage at peak | 3.2 GB (throttled) | 3.8 GB (throttled) | 9.3 GB |
Conclusion: Version 6.35 is, on average, 2.1x faster than version 6.30 and 4.5x faster than the legacy 5.90 series, while being remarkably more stable.
Earlier versions ran as 32-bit applications even on 64-bit systems. Version 6.35 ships with a true 64-bit executable. The result:
Amibroker 6.35 remains a powerhouse for serious strategy research if you prioritize backtest speed, low cost, and customizability over modern UI and ease of use. It’s showing its age, but for batch-oriented quantitative analysis on Windows, it still outperforms many newer tools.
Rating: 7.5/10 (loses points for UI and real-time trading friction; gains for raw performance and flexibility)
Note: Amibroker has released newer versions beyond 6.35. If you're starting fresh, consider checking the latest stable build (likely 6.40+ by 2026) for any UI or data handling improvements.
AmiBroker 6.35 is a professional technical analysis and trading platform version that introduced several performance enhancements and visual updates. Key highlights of this version include: Visual & UI Enhancements Dark Mode for Listviews
: Users can enable a customizable "black theme" for owner-draw listviews (such as Analysis and Real-Time Quote windows) by navigating to Tools -> Customize -> Appearance HighDPI Support
: Improved compatibility for high-resolution screens, ensuring parameter names are not truncated and UI buttons (Close/Minimize/Restore) are correctly scaled. Enhanced Text Tool
: Added independent font settings for text tools and per-study selectable font sizes. Performance Improvements 5x Rendering Speed
: The listview redraw speed was increased fivefold by bypassing standard Windows rendering bottlenecks, particularly noticeable when handling large datasets or columns. Increased Threading
: The maximum number of threads per single Analysis window was increased from 32 to 64, allowing for faster backtesting and explorations on modern multi-core CPUs. Optimised Sorting
: Listview sorting by date columns is now over 10 times faster compared to previous versions. AFL & Functional Updates New AFL Functions : Introduced functions like SafeDivide(x, y, valueifzerodiv) to handle division by zero, for statistical calculations. AFL Editor Improvements
: A function navigation combo box was added to the toolbar to quickly jump to user-defined function definitions within the code. Improved Batch Functionality
: Added clipboard support (Copy/Paste) for batch items and new optional parameters for batch commands like "Data Import ASCII" and "Execute and Wait". Compatibility & Upgrading Upgrade Policy amibroker 6.35
: Version 6.35 was provided as a free upgrade for users who purchased an AmiBroker license after November 28, 2017. AmiQuote Integration : This version supports integration with
for data fetching, including fixes for historical data providers like Yahoo Finance.
For more technical details or to download official documentation, you can visit the AmiBroker DevLog official guide for the new functions or help setting up a database in this version?
AI responses may include mistakes. For financial advice, consult a professional. Learn more AmiBroker 6.35.0 BETA Read Me 28 Nov 2019 —
AmiBroker 6.35 is a professional technical analysis and trading system development platform, primarily released in a series of beta versions starting in late 2019. This release focused on massive performance optimizations for large-scale data processing and user interface modernizations, including a highly requested dark theme. Key Performance and UI Enhancements
The 6.35 update introduced several core improvements aimed at high-volume data analysis:
Exploration Speed: Optimized for significant speedups when running explorations that output millions of cells.
UI Modernization: Added a native Dark Theme support for list views, which can be enabled via Tools -> Customize -> Appearance.
List View Optimization: Rendering of massive list views is up to 5x faster compared to previous versions like 6.31.
Large Dataset Handling: Listview sorting by date columns was improved to be over 10 times faster. New AFL Functions and Language Improvements
The update expanded the AmiBroker Formula Language (AFL) with new mathematical and logical tools:
SafeDivide(x, y, valueifzerodiv): A new function that handles division by zero by replacing the result with a user-defined value, preventing calculation crashes.
inverf(x): Introduced the inverse error function for advanced statistical modeling.
AFL Editor Improvements: Added a function navigation combo box in the toolbar, allowing users to quickly jump between defined functions in complex scripts.
Enhanced Warnings: The parser now detects and warns (Warning 510) about accidental empty bodies in for and while loops, such as extra semicolons at the end of the statement. Batch Processing and Import Updates
Automation features in the Batch window received functional upgrades: If you are deciding whether to upgrade or stick with 6
Clipboard Support: Users can now use standard Cut/Copy/Paste operations within the Batch Editor.
Command Parameters: New optional parameters were added for commands like Execute and Wait (specifying working directory) and Data Import ASCII (specifying format definition files).
CSV Customization: Added the ability to specify a custom column separator for file exports. Installation and Compatibility
Upgrade Policy: Version 6.35 was provided as a free upgrade for users who registered AmiBroker after November 28, 2017.
AmiQuote Integration: Users confirmed compatibility with AmiQuote 4.04, noting that the 32-bit version of AmiQuote works correctly with the 64-bit version of AmiBroker 6.35 when run standalone.
Pre-requisites: To install the 6.35 beta, users typically needed to have a full version of AmiBroker 6.30 already installed. Summary Table: Feature Comparison Improvement in 6.35 Exploration Output Up to 50x-100x faster for millions of rows Theme Native Black/Dark mode for list views Sorting 10x faster date-based sorting Division New SafeDivide to prevent crashes
Note: Users should be aware that 6.35 was a beta series. Stable releases have since moved forward, with more recent versions like 6.93 offering further advancements like the QuickGFX rendering engine.
AI responses may include mistakes. For financial advice, consult a professional. Learn more AmiBroker 6.35.0 BETA Read Me
AmiBroker 6.35 is a legacy 32-bit version of the popular technical analysis software. While it is not the current version (AmiBroker has since moved to 64-bit versions 6.x and beyond), it remains widely used by traders who run older 32-bit systems or specific legacy plugins that are not compatible with 64-bit architecture.
Here is a comprehensive guide to setting up and using AmiBroker 6.35.
When you open AmiBroker 6.35, you will see the standard layout:
To extract every ounce of performance from version 6.35:
AmiBroker 6.35 is a stable, mature version ideal for users with legacy 32-bit plugins or older hardware. If you have a modern PC and use standard data feeds (like AmiQuote or standard broker APIs), upgrading to the 64-bit version is recommended for better performance and memory handling.
AmiBroker version 6.35, primarily released as a beta in late 2019 and early 2020, introduced significant performance optimisations and modern interface updates. Key Feature Highlights Performance Boosts:
Exploration Speed: Significant speedups when running explorations on large datasets.
Rendering: Up to 5x faster rendering for massive list views compared to previous versions like 6.31. User Interface Updates: Earlier versions ran as 32-bit applications even on
Dark Theme: Introduced a native dark mode for owner-draw list views, which users can enable via Tools -> Customize -> Appearance.
HighDPI Awareness: Improved compatibility for high-resolution screens, ensuring UI elements like MDI buttons and parameter names do not truncate or blur. AFL (AmiBroker Formula Language) Enhancements:
New Functions: Added SafeDivide(), erf(), and inverf() for advanced mathematical operations.
Parser Improvements: General updates to the AFL parser to increase stability and error detection. Batch Functionality Improvements:
Added clipboard support for copying and pasting selected batch items.
Introduced new optional parameters for batch commands to streamline automated workflows. Technical Refinements
Chart Snapping: The "Snap to price" threshold logic was changed from a percentage of price to a percentage of chart height, allowing for universal behavior across different asset classes like stocks and forex.
Debugging Improvements: When a 3rd-party AFL plugin crashes, the editor now displays a call stack, making it easier to identify the source of the error.
Date Handling: Sorting list views by single date columns became 10x faster, and the platform improved string-to-date conversion to support month names in various languages. Version 6.35.1 Fixes
Released shortly after the 6.35.0 beta, this minor update addressed specific bugs:
Fixed an issue where .abb files missing Param2 would incorrectly use Param as a default.
Updated the threshold year for two-digit year data files from 20 to 25 (e.g., YY < 25 is interpreted as 19YY; otherwise 20YY).
For detailed documentation on these features, you can refer to the official AmiBroker Release Notes or the AmiBroker DevLog.
AI responses may include mistakes. For financial advice, consult a professional. Learn more AmiBroker 6.35.1 BETA released
If you use multiple databases, version 6.35 allows parallel database instances. Open AmiBroker.exe with the /db parameter:
Amibroker.exe /db "C:\MyDatabases\Forex_db"
You can run three instances for Forex, Futures, and Stocks simultaneously.