What you can do here
Scan Lab offers Daily, Weekly and Monthly alongside presets such as Long Buildup, Short Buildup, OI Addition/Reduction, Volume Burst and Turnover Leaders. Most presets return contract rows ranked by turnover (OI Addition and Reduction rank by OI). Call Wall and Put Wall are not OI-ranked walls: each selects CE or PE contracts and then applies the same turnover ranking. High PCR and Low PCR return a single symbol-level check for the selected underlying, not a contract list. Named Save filters persists a limited scope, not every scan condition or an alert subscription.
- Choose a preset and inspect its returned contracts or underlying-level results.
- Keep scanning separate from the one-contract DIY history analysis and saved scope controls.
A look inside F&O Screener
From numbers to understanding
- 01
Long buildup is price up + OI up; short buildup is price down + OI up.
- 02
Short covering is price up + OI down; long unwinding is price down + OI down.
- 03
The selected preset and timeframe determine the result meaning and required data.
- 04
Results keep their identity and units; Call/Put Wall are turnover-ranked CE/PE rows and PCR presets are symbol-level.
- 05
The Wall presets do not rank by open interest; use the Option Chain's wall highlights for OI-based walls.
LONG VERSUS SHORT BUILDUP
Illustrative walkthroughIllustrative test: a price-up/OI-up contract belongs to the long-buildup rule. A NIFTY put whose own premium falls while OI rises instead fits short buildup. No observed membership or automatic trade recommendation is asserted.
Try it, one step at a time
Use these checkboxes as a reading checklist. They do not perform actions in Prime.
What this does not tell you
Preset labels do not identify actual buyers or writers. Availability and ranking depend on the imported derivatives scope.
Analysis, not advice. Past performance does not predict future results. Examples are illustrative; prices, scores and counts may have changed.
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