Flat Base
What it finds: O'Neil flat base — a shallow (≤15%), tight sideways consolidation of at least ~5 weeks after a prior advance. The second-stage base that often precedes the strongest breakouts. • Best market conditions: Risk-on uptrends where leaders rest before the next leg. • Typical trigger: Flat-base detector fires while Stage-2 with adequate liquidity.
Filter breakdown
- Daily move over 0.6%
- Flat base
- Stage 2
- $5M+ a day
- Price $10+ in US dollars (outside the US, companies worth $2B+ pass)
- Sorted by price strength, highest first
How to use this screen
Click Apply this screen to open the Screener pre-loaded with these filters. Re-rank the results by your preferred metric (Stockscore, Master Rank, RS Rank), then open any ticker for the full chart, factor breakdown, options-sentiment overlay and insider-buying history.
Screens are deterministic snapshots. They recompute every market day against the latest factor table. Save a copy in the Screener to tune thresholds for your own playbook.
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