又是移動停利的疑問^.^

又來請教各位大大~~1分K 不用逐筆洗價也不自動洗價 讀取筆數5000
移動停利止損我加MAXLIST( BOUT = Maxlist(BOUT, H - loss_point);)來判斷，應該BOUT只會往上移不該往下降才對~~我是哪個環節沒搞清楚，BOUT會改變 我是哪忘設定什麼
請大大們 幫忙解惑~~
// 初始化變數

var: BCost(0), BOUT(0); // 多單

input: move_profit_point(8, "移動停利(點)");

input: loss_point(30, "停損點(點)");

if position = 1 and filled = 1 then begin

    BCost = filledAvgPrice;

    BOUT = BCost - loss_point;

    Print("進場成功: BCost=", BCost, ", BOUT=", BOUT);

end;

// 移動停利============================

if  position = 1 and filled = 1 then begin

    if C > BCost + move_profit_point then begin

        BOUT = Maxlist(BOUT, H - loss_point);

        Print("移動停利: 當前價格=", C, ", 更新後 BOUT=", BOUT);

    end;

end;

// 出場============================

if position = 1 and filled = 1 then begin

   // value100 = TimeAdd(Time, "S", 50);

   // if currentTime > value100 then begin

        if Close < BOUT then begin

            Print("出場條件成立: 收盤價=", Close, ", BOUT=", BOUT);

            SetPosition(0, Market);

        end;

    //end;