Hello, I tried to build a programm for the following system tester: buy order: if closing price is higher than moving average 200 days and closing price is is lower than the bottom bollinger band (low, 10 days, 1.2) sell order: after 10 bars (or working days) Here is my program: BUY ORDER: C>mov(C,200,S) AND C<bbandBOT(low,10,q,1.2) SELL ORDER BARSSINCE(C>mov (close,200,s) AND C<bbandBOT(low, 10, s,1.2)) = 10 The issue is if we have several buy signals, then the sell signal will be given 10 days after the last one and not the first one. Exemple : Day 1 buy Day 2 buy Day 3 buy Sell the 13rd days and not the 10th day. How can I solve it ? Many thanks for your help. S.