This code snippet demonstrates how to implement a breakeven and trailing stop strategy using percentage values in ProBuilder language. The strategy adjusts the stop loss level once a trade reaches a specified profit percentage, helping to protect gains or minimize losses.

BreakEvenStop = 1 // BreakEvenStop and BreakEvenStop Minimum Gain
bs = 1.00 // % BreakEvenStop
bsm= 0.10 // % BreakEvenStop Minimum Gain

if tcShort and tcxShort then
    if (s0 or s1 or s2 or s3 or s4 or s5 or s6 or s7 or s8 or s9) then
        sellshort positionsize contract at market
        shorttradecounter=shorttradecounter + 1
        If BreakEvenStop then
            SET STOP %LOSS bsm
        endif
    endif
endif

// BreakEvenStop
If BreakEvenStop then
    if not onmarket then
        newSL=0
    endif
    If longonmarket and close-tradeprice(1)>=((tradeprice/100)*bs)*pipsize then
        newSL = tradeprice(1)+((tradeprice/100)*bsm)*pipsize
    endif
    If shortonmarket and tradeprice(1)-close>=((tradeprice/100)*bs)*pipsize then
        newSL = tradeprice(1)-((tradeprice/100)*bsm)*pipsize
    endif
    If newSL>0 then
        sell at newSL Stop
        exitshort at newSL Stop
    endif
endif

The code snippet above is structured to manage trading positions by setting breakeven and trailing stops based on percentage gains:

• Initialization: Variables BreakEvenStop, bs (BreakEvenStop percentage), and bsm (BreakEvenStop Minimum Gain percentage) are set.
• Entry Condition: A short position is initiated if certain conditions (tcShort and tcxShort) are met and any of the signals from s0 to s9 are true. The trade counter is incremented, and an initial stop loss is set as a percentage of the entry price.
• Stop Adjustment: The stop loss level (newSL) is recalculated based on the trade’s profit reaching the defined percentage (bs). If the condition is met, newSL is adjusted to either lock in a profit or reduce the loss, depending on the market direction (long or short).
• Execution: If a new stop loss level is defined and is greater than zero, the position is closed at this new stop loss level, effectively implementing a trailing stop.

This approach helps in managing ongoing trades by dynamically adjusting stop levels based on market performance relative to the entry point, aiming to secure profits or reduce potential losses.