AI Strategy Builder Beta

From Idea to Working Strategy, Fast

The AI Strategy Builder (Beta) transforms how strategies are created in NinjaTrader. Instead of writing code, you can describe your trading idea in plain language and generate a compiled, backtested NinjaScript strategy in minutes.

Built directly into NinjaTrader Desktop, this feature reduces the gap between concept and execution, helping you move from idea to testable strategy faster than ever.

Note: The AI Strategy Builder is currently available in English only.

Beta Rollout: The AI Strategy Builder is being released through a phased beta rollout. Additional functionality and refinements are planned before a broader production release in a future NinjaTrader version.

What Is AI Strategy Builder?

AI Strategy Builder is a conversational strategy development system that turns your ideas into working NinjaScript.

•Describe your entries, exits, and risk logic

•The system generates and compiles the strategy automatically

•A backtest runs instantly inside the same window

•Continue refining through an ongoing conversation

Unlike external AI tools, everything happens inside your existing NinjaTrader workflow. No copy / pasting. No switching tools.

Why It Matters

AI Strategy Builder is designed to:

•Reduce development time from hours to minutes

•Lower the barrier to entry for strategy creation

•Accelerate iteration for experienced users

•Keep everything fully integrated within NinjaTrader

It expands who can build strategies and how quickly they can improve them.

Important Notes

Unsupported Indicators or External Resources

If a generated strategy references an indicator, library, or external data resource that is not currently available within NinjaTrader, the system will insert a placeholder into the generated code where the unsupported reference is required.

This allows you to manually add or connect the necessary code, indicator, or resource at a later time.

Usage Limits

The AI Strategy Builder includes hourly and daily token usage limits.

If a usage limit is reached, additional requests will be temporarily unavailable until the limit resets. If this occurs, wait and try again later.

How to Access

1.Open Control Center

2.Select New > AI Strategy Builder

3.The AI Strategy Builder window will open, combining:

•AI Assistant (chat interface)

•Strategy Analyzer (backtesting and results)

Before You Begin: Compile Check Required

When opening AI Strategy Builder, NinjaTrader will automatically run a compile check on your NinjaScript environment.

•If compile errors are detected, they must be resolved before generating a strategy

•This ensures generated strategies can compile and run successfully

How to Troubleshoot Compile Errors

How It Works

1. Describe Your Strategy

Enter your idea in plain English:

“Go long when the 20 EMA crosses above the 50 EMA and RSI is below 30. Exit when RSI crosses above 50 or after 10 bars. Include a 20-tick profit target and 40-tick stop loss, 1 contract at a time.”

2. AI Generates Your Strategy

The AI:

•Interprets your logic

•Generates NinjaScript

•Compiles the strategy automatically

3. Instant Backtest

If compilation succeeds:

•A backtest runs automatically within the window

•Results appear in the Strategy Analyzer panel

4. Review and Adjust Backtest settings

Select the ellipsis to review the annotated script.

Provide quick feedback with thumbs up & thumbs down.

For the backtest, you can:

•Modify strategy parameters

•Adjust backtest settings

•Run additional backtests instantly

5. Refine Through Conversation

Continue the same chat session to:

•Update conditions

•Add filters

•Adjust stops/targets

The system regenerates and retests; there's no need to start over.

Best Use Cases

•Rapid strategy prototyping

•Learning NinjaScript structure

•Iterating on trading ideas quickly

•Testing variations of existing strategies

Prompting Tips

For best results:

•Be explicit with entry and exit conditions

•Specify the default order quantity to use

•Define indicators and parameters clearly

•Include risk management (stop loss, profit target)

•Avoid vague terms like “strong trend”

Important Notes

Generated strategies are a starting point, not final systems

•Always review code and validate results before live trading

•Complex strategies may require multiple iterations

•Indicator support may vary

Feedback

Your feedback plays a critical role in improving the AI Strategy Builder experience before full production release.

We encourage you to provide feedback on:

•Strategy generation quality

•Backtest accuracy

•Missing functionality

•Unsupported use cases

•Performance or usability issues

•Incorrect or unexpected results

When reporting issues, include:

•Your Username

•Date and time (including time zone) of the prompt

•Details around your prompt and what was generated

•What you expected vs. what occurred

As a beta feature, behavior and outputs may continue to evolve between releases.

Report bugs / feedback to: [email protected]