This collection of scans is used to find stocks which have broken through resistance based on some criteria. That could be price rising above a moving average, crossing above the upper Bollinger band, or making a new high in price. Momentum-based traders may want to use these signals as entry criteria. On the contrary, some bearish contrarians may want to use these signals as part of their own short-selling entry criteria to catch bulls off-guard in whipsaw situations.