Bought premarket on AI cancer news. Previous runner. Low float. Hot sector. Past initial resistance/support line near 4.30, which was my risk. Next resistance near 6. Sold most going into open though it couldn't get past high of day which was almost near premarket highs around 5.75 3 times. Failed to get break out past 5.75 and rugged pulled. Could have also played it with the dip buy at the open and sold into high of day. Best sell 5.43.