## Model Control

There are four entries, 'N Buy', 'N Sell', 'Buy (days)' and 'Sell (days)', that can be modified to affect the behavior of the Profit analysis tool. These are located on the right hand side of the Profit interface.

'N Buy' will influence when the Profit securities analysis tool recommends entering the market for a specific security. As you make the 'N Buy' value larger, you will notice that the 'Buy' recommendation price will decrease. This feature may help you get the 'jump' on other investors following the 'turtle' trading techniques. Typically, I have found that values between 0 and 0.5 work well.

'N Sell' provides a major influence on your loss management. In general, the larger the 'N Sell' value, the less sensitive the tool is to stock price swings. A value of 1 to 2 is recommended for 'N Sell' for each security. A smaller value of 'N Sell' in general will cause frequent trading signals. A value of 99 will effectively disable this feature.

'Buy (days)' and 'Sell (days)' represent the number of historical trading days that the Profit tool uses to determine buy and sell signals. Again, small numbers will typically cause more frequent trades. The nominal values of 20 and 10 days respectively work well under most conditions.

You can simulate the original Turtle Trading Methodology by setting 'N Buy' to 0 and 'N Sell' to 99.

In the 'Options' menu, select 'Suggest Model Control Values' and then select either 'Maximize Profit' (will allow larger price swings) or 'Maximize Reward/Risk' to calculate suggested Model Control values for one (if the Single Security radio button is selected) or all of the securities in the symbol list (if the Single Security radio button is not selected). This process can take quite some time so please be patient. When using this option, it is best to have at least a years worth of historical data for the security of interest.