> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tqx.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Run a backtest

> Run a historical simulation for a saved strategy version and inspect the evidence.

A backtest runs one saved strategy version over a historical period. The run stores the exact parameters, metrics, equity curve, trades, and log so you can review the result later.

## Before you start

* Save the strategy code and parameters.
* Confirm the strategy market and symbols.
* Choose a period that is long enough to cover the intended behavior.
* Decide whether daily (`1d`) or minute (`1M`) data matches the signal.

## Run the simulation

<Steps>
  <Step title="Select a version">
    Open the strategy detail page and select the version you want to test. A run remains linked to this version even when the strategy changes later.
  </Step>

  <Step title="Set the backtest parameters">
    Set the period, initial capital, commission multiplier, slippage, frequency, and benchmark.
  </Step>

  <Step title="Run the backtest">
    Click **Run backtest** or ask Qube to run the selected strategy. Qube streams progress and keeps the run in the strategy's run history.
  </Step>

  <Step title="Review the result">
    Read the key metrics first, then inspect the equity curve, trade details, and strategy log. Use the failure details to fix code or data assumptions before rerunning.
  </Step>
</Steps>

<Frame caption="Strategy detail page with parameters, code, and backtest results">
  <img src="https://mintcdn.com/tqx/160nKvx-VCtYCUUR/images/strategy/strategy-detail-params-code.png?fit=max&auto=format&n=160nKvx-VCtYCUUR&q=85&s=eb8ed209cd8176c8298ce2a7d849cd1d" alt="Qube strategy detail page showing backtest parameters, strategy code, completed metrics, equity curve, and trades" width="3126" height="1985" data-path="images/strategy/strategy-detail-params-code.png" />
</Frame>

## Parameters

| Parameter             | What it controls                                                          |
| --------------------- | ------------------------------------------------------------------------- |
| Period                | The historical start and end dates.                                       |
| Initial capital       | The starting account equity for the simulation.                           |
| Commission multiplier | A multiplier applied to the market's base commission schedule.            |
| Slippage              | The price or tick adjustment applied to simulated orders.                 |
| Frequency             | Daily bars (`1d`) or minute bars (`1M`). Minute runs usually take longer. |
| Benchmark             | The comparison index for supported stock markets.                         |

<Note>
  If you do not specify a field, Qube uses the current market defaults. Keep the saved parameters with the version when you need a reproducible comparison.
</Note>

## Continue

* [Read run history](/research/run-history)
* [Compare strategy versions](/research/strategy/versions)
* [Optimize parameters](/research/strategy/optimization)