買進及賣出價格問題

input: exit_period(20, "收盤前N分鐘平倉");

input: loss_percent(5, "停損(%)");

var: long_condition(false);

var: exit_long_condition(false);

var: market_close_condition(false);

var: price_condition(false);

value1 = GetField("分公司買進家數", "D")[1];

value2 = GetField("分公司賣出家數", "D")[1];

value3 = GetField("Volume", "D")[1];

value4 = (value2 - value1);

long_condition = Close > GetField("RefPrice", "D") * (1+ 1.5/100) and value4 > value3 * 0.02 and value3 > 500;

exit_long_condition = Close < Average(Close, 10);

market_close_condition = EnterMarketCloseTime(exit_period);

price_condition = Close > 10;

if Position = 0 and long_condition and price_condition then

begin

SetPosition(1, MARKET);

end;

if Position = 1 then

begin

if loss_percent > 0 and Close <= FilledAvgPrice*(1-0.01*loss_percent) then

begin

SetPosition(0, MARKET);

end else if exit_long_condition and market_close_condition then

begin

SetPosition(0, MARKET);

end;

end;

想詢問3228 4/21買入的那一筆為什麼不是設定的前一日收盤價的+1.5%，4128及5608為什麼沒有在設定的-5%時停損?