1st trade is what you take 1st time after 10:15. now lets say buy is triggere and met with SL. now we can take one more trade. this is called 2nd trade. if this also meets SL, then 3rd trade. the chances of meeting target increases with every trade as its unlikely for a stock to fail so many times. for 2nd trade u can take 0.81% as profit
generally speaking, i take ONLY 2nd, 3rd trades. as chances are better.