This code snippet demonstrates how to implement dynamic stop loss levels for both long and short positions in trading strategies using the ProBuilder language. The stop loss levels are adjusted based on the highest and lowest prices over a specified period.

//stoploss for long position
If longonmarket then
    //calculate the long stoploss (difference between the open price of the trade and the lowest low)
    Slong = Tradeprice - Lowest [20](low)
    Set stop loss Slong
Endif

//stoploss for short position
if shortonmarket then
    //calculate the short order stoploss (difference between the open price of the trade and the highest high)
    Sshort = Highest [20](high) - Tradeprice
    Set stop loss Sshort
Endif

This code snippet is structured to adjust stop loss levels dynamically based on recent price fluctuations, ensuring that the stop loss is set at a level that reflects current market conditions.

• Conditional Checking: The code first checks if there is a long position open with If longonmarket. If true, it proceeds to calculate the stop loss for the long position.
• Calculating Long Stop Loss: The stop loss for a long position (Slong) is set as the difference between the trade’s opening price (Tradeprice) and the lowest price in the last 20 periods, retrieved using Lowest[20](low).
• Setting Long Stop Loss: The calculated stop loss value for the long position is then set using Set stop loss Slong.
• Conditional Checking for Short Position: Similarly, the code checks if there is a short position open with if shortonmarket. If this condition is true, it calculates the stop loss for the short position.
• Calculating Short Stop Loss: The stop loss for a short position (Sshort) is calculated as the difference between the highest price in the last 20 periods, retrieved using Highest[20](high), and the trade’s opening price (Tradeprice).
• Setting Short Stop Loss: The calculated stop loss value for the short position is then set using Set stop loss Sshort.

This approach helps in managing risk by adjusting the stop loss levels according to the market’s recent highest and lowest prices, which can be particularly useful in volatile markets.