# Backtesting Strategy performance

Once a LUA strategy compiles successfully, users can evaluate its performance by clicking **Run**.\
Based on the selected **pSpan** configuration, the strategy is backtested across different time windows.

As the compiler progresses through historical data, signals are incrementally generated. Performance metrics include the **number of buy and sell signals** and their respective outcomes.

<figure><img src="/files/cNM7ofjusaGN02meJsYT" alt=""><figcaption></figcaption></figure>

Backtesting does not predict future performance and should be used to compare strategies and understand behavior, not as a guarantee of outcomes.

Successful signals are displayed with a **green dot**, while losing signals are marked with an **orange dot**, allowing quick visual comparison across time windows.

<figure><img src="/files/kw0HWcXSSw2Rr9b8ZEy7" alt=""><figcaption></figcaption></figure>


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