Is it a hunch or a real edge?
Master Your Trading
Strategy with AI
Backtesting made Simple, No Subscriptions, and a Platform that Scales with You.
Why Choose BackTestLM?
Everything you need to turn trading ideas into evidence — and conviction into confidence.
AI-Powered Analysis
Zero Code: Leverage advanced LLMs by simply explaining naturally your strategy or upload charts/trade history to build, test, analyze, interpret forecasts and sentiment, and uncover insights beyond traditional metrics.
Lightning Fast Backtests
Run complex backtests on multiple symbols quickly using our optimized models and parallel cloud infrastructure.
Deep Performance Metrics
Get visual and detailed reports on Sharpe Ratio, Drawdown, Win Rate, and other institutional-grade metrics.
Strategy Validation
Stress-test your strategies using Monte Carlo simulations, Blind Data testing, and Walk Forward Analysis to ensure statistical validity and robustness.
Strategy Optimization
Automatically find the best parameters for your strategy to maximize returns and minimize risk with Parameter Optimization and Grid Search.
Global Market Data
Want ideas? Access hundreds of internal market strategies and over 200k assets with 20+ years of high-quality historical data for equities, ETFs, funds, options, commodities, crypto and forex.
Why BackTestLM is Different
Complex tools. Expensive subscriptions. Built for developers. BackTestLM flips it: plain English, one page, results in seconds.
| Capability | BackTestLM | Traditional Platforms |
|---|---|---|
| Strategy creation | Plain English prompts or upload charts & trades — Zero Code | Coding or rigid visual builders |
| Data inputs | Price + macro events + social sentiment (multi-source AI) | Mostly price-based indicators |
| Strategy discovery & learning | AI scores, explains, suggests, refines, and continuously improves your strategy | Manual trial-and-error — static results |
| Backtesting | Multi-symbol, advanced simulations, aggregated results | Often limited or fragmented |
| Validation + Optimization | Blind Data Testing, Monte Carlo, Walk-Forward, Grid Search — built in | Partial or manual |
| Workflow | All-in-one: idea → test → validate → optimize | Multiple disconnected tools and steps |
| Pricing | Pay-per-use — no subscription required | Monthly or annual subscriptions |
How It's Done
Go from strategy conception to edge confirmation in minutes
1. Input
Describe your trading strategy in your own words or upload charts and trade history and confirm the setup.
2. Review
Analyze the AI-generated strategy, performance metrics, charts, and score.
3. Validate
Evaluate robustness using Monte Carlo, Walk-Forward, and Blind Data tests.
4. Optimize
Run Parameter Grid Search to find the strongest parameter combinations.
Register & Get Free BTUs
Start with ease. Create your free account and receive your first BTUs (Backtest Units) immediately. 1 BTU covers a comprehensive 5-year backtest on daily bars for a single symbol.
- Free BTUs on sign-up
- No credit card required
- Instant access
Describe Your Strategy or Upload Your Data
Type your strategy in plain English, pick from hundreds of built-in market strategies, or let our AI chat help you refine your idea. You can also upload your historical trades for deep analysis and strategy refinement, or drop in a chart from social traders to instantly confirm, debunk, or build on a potential edge.
- Natural language strategy input
- Hundreds of built-in market strategies
- AI chat to tune your strategy
- Upload historical trades for analysis & refinement
- Validate charts from social traders
Confirm & Execute
BTU consumption is calculated automatically. Review your parameters and timeframe (1 minute to 1 month), then confirm to launch high-speed parallel backtesting.
- Fully transparent BTU usage
- Runs in the background — continue working
- Automatic performance report when finished
Scoring & Interactive Visualization
Receive a comprehensive score and explore detailed graphical and analytical trade results. Compare your strategy outcome against baseline benchmarks with professional-grade performance metrics.
- Edge Reliability Scoring
- Interactive charts
- Performance metrics
- Trade logs
Strategy Validation
For strategies with over 100 trades, we automatically run Out-of-Sample Walk-Forward and Monte Carlo simulations to stress-test your strategy's resilience and statistical validity.
- Walk-Forward
- Monte Carlo
- Blind Data Testing
Strategy Optimization
Run structured parameter optimization to improve entries, exits, and risk control.
- Parameter Grid Search
- Optimize Entry & Exit Rules
- Sharpe / CAGR / Drawdown Targets
- Risk-Constrained Optimization
- Robustness Evaluation
AI Performance Analysis
Leverage advanced LLMs to interpret your strategy's performance, uncover insights beyond traditional metrics, and identify patterns you might have missed. Then, apply automatically system recommendation to fine-tune your strategy.
- 100% Private & Secure
- Unlimited analysis
- Variation testing
AI Symbol Analysis
Deep dive into any symbol with AI-driven social sentiment tracking and professional 14-day price forecasts to complement your backtesting data.
- Social Sentiment
- 14-Day Forecasts
- Company Profiles
Ready to automate your trading edge?
Join the next generation of data-driven traders. No credit card required to start your free trial.
What’s the value of a strategy that truly maximizes your edge?
Scale with Precision.
Strings-free pricing. No subscriptions. Only pay for the backtesting units you need.
Explorer
+ taxes where applicable
- Perfect for testing simple strategies
Builder
+ taxes where applicable
- Designed for serious strategy developers
Pro
+ taxes where applicable
- Full-scale backtesting and optimization
Quant
+ taxes where applicable
- Institutional-grade volume and features
Launch pricing - limited offer.
How do BackTesting Units (BTUs) work?
BTU consumption is directly linked to the density of data processed.
| Scenario | Data Volume | Cost |
|---|---|---|
| Daily Backtest (5 Years) | i.e. ~1,300 bars | 1 BTU |
| Hourly Backtest (1 Year) | i.e ~2,400 bars | 2 BTUs |
| Walk Forward Analysis | Unlimited | Included in Backtest execution |
| Monte Carlo Validation | Unlimited | Included in Backtest execution |
| Blind Data Testing | Unlimited | Included in Backtest execution |
| Grid Search Optimization | Variable | Base BTU × Combinations (i.e. 3 BTUs) |
| Watchlists & Signals | Variable | Coming Soon |