Limit Order Execution Assumptions

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Limit orders are filled at a specific price or better (for long better = lower, for short better = higher). In backtesting MultiCharts works:

Limit order execution behavior for backtesting can be modified in the Backtesting tab of Strategy Properties window.

There are 4 different variants:

  1. Chart resolution is 1 tick or Bar Magnifier of any resolution is enabled. Backtesting Assumptions is set to Fill limit order when trade takes place at limit price or better.
    Example: Generated order: sellshort limit @ 121; available prices: 120, 122, 125, ...; order is filled @ 122.
  2. Chart resolution is 1 tick or Bar Magnifier of any resolution is enabled. Backtesting Assumptions is set to Fill limit order when trade price goes beyond limit price by 3 points.
    Example: Generated order: sellshort limit @ 121; available prices: 120, 122, 125, ...; order is filled @ 125.
  3. Chart resolution is not 1 tick and Bar Magnifier is not enabled. Backtesting Assumptions is set to Fill limit order when trade takes place at limit price or better.
    Example: Generated order: sellshort limit @ 121; order is filled @ 121 or better if 121 (or better) is between High and Low of the bar.
  4. Chart resolution is not 1 tick and Bar Magnifier is not enabled. Backtesting Assumptions is set to Fill limit order when trade price goes beyond limit price by 3 points.
    Example: Generated order: sellshort limit @ 121; order is filled @ 124 if 124 price is between High and Low; order is not filled at all if there is not 124 price between High and Low of the bar.

TIF (time in force) is specified by default depending on the selected option.

When Fill limit order when trade takes place at limit price or better option is selected, GTC (Good-Till-Canceled) will be set.
When Fill limit order when trade price goes beyond limit price by X points option is selected, DAY time in force will be used.

For other backtesting orders GTC is used by default.