FIFO rule. Assume your 1st buy at 100.00, stop loss at 98.00, take profit at 120.00. The 2nd buy at 104.00, stop loss at 103.00, take profit at 106.00. If the stop loss of the 2nd buy is hit, the buy position that will be closed is the 1st buy position, not the 2nd buy position.
Multiple...