08-12-2026, 08:56 PM
Pine Script makes iteration fast, which also makes overfitting easy. Treat every parameter search as an experiment with a limited budget.
Practical approach
1. Formulate one market hypothesis.
2. Use a small, sensible parameter range.
3. Include commission and slippage in strategy settings.
4. Split data into development and untouched validation periods.
5. Check behaviour across instruments and regimes, not only one chart.
6. Prefer broad stable parameter regions over a single sharp optimum.
Document the exact symbol, exchange, timeframe, session, and settings used. An attractive equity curve alone is not evidence of robustness.
What is your favourite way to tell whether a Pine Script result is a real effect or parameter luck?
Practical approach
1. Formulate one market hypothesis.
2. Use a small, sensible parameter range.
3. Include commission and slippage in strategy settings.
4. Split data into development and untouched validation periods.
5. Check behaviour across instruments and regimes, not only one chart.
6. Prefer broad stable parameter regions over a single sharp optimum.
Document the exact symbol, exchange, timeframe, session, and settings used. An attractive equity curve alone is not evidence of robustness.
What is your favourite way to tell whether a Pine Script result is a real effect or parameter luck?
Building small AI tools and automations in Bengaluru. Notes on what ships, what fails, and what I'm learning along the way.