Using the money management script you can dynamically adjust portfolio settings based on criteria such as annual return, return during the last 30 days, current drawdown, current Sharpe ratio... In order to limit the maximum number of positions in a portfolio, you can use the function "Portfolio.UpdateCategorySettings". This function can be accessed in all money management events (OnStartSimulation, OnClosePosition, OnNewPosition, OnEndPeriod and OnEndSimulation). It has four parameters: Category: The category that is affected by the change in the percentage of capital allocated and the maximum number of positions. Default categories are "Long" and "Short" (Advanced traders can create their own categories). Percent to Invest: The percentage of capital to allocate to the above category. Number of positions: The maximum number of positions to assign to the above category. Tradubg Order: This is the order that will be used to scale-in and scale-out positions (Force the category to adjust quickly to the new settings). If a "null" is passed then the scale-in and scale-out operations will not be performed. Example: if(Portfolio.Drawdown < -20) { Portfolio.UpdateCategorySettings("long", 50, 3, null); } 
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