Option OI Screener
Track PCR and IV-bias together. Extreme PCR without IV support is often noise; aligned extremes usually carry stronger directional intent.
Prioritize names where spot is interacting with OI boundaries. Break-and-hold above resistance or rejection below support can become fast tactical trades.
Use the screener for selection, not blind entry. Confirm with intraday structure, liquidity, and hard invalidation levels before position sizing.
Institutional OI Guide: PCR, IV and Boundary Execution
This page is designed as a professional pre-trade filter. Use it to rank symbols by positioning quality, then execute only after confirming structure, liquidity, and invalidation.
Low PCR (Below 0.70)
Call-heavy positioning, often momentum-led optimism.
Desk view: Avoid chasing late highs. Prefer pullback continuation setups or hedged long structures when price confirms strength.
Balanced PCR (0.70 to 1.20)
Two-way flow with lower directional consensus.
Desk view: Range logic and mean-reversion tend to work better until a clean boundary break appears with volume.
High PCR (Above 1.20)
Put-heavy positioning with elevated hedging demand.
Desk view: Treat as defensive sentiment. If price still holds support, reversal probability improves; if support fails, downside can accelerate.
Execution Workflow
Universe Narrowing
Start with prebuilt screens in the table to isolate symbols with clean IV-bias and boundary behavior.
Regime Confirmation
Validate PCR regime against spot location (support/resistance) and intraday structure before selecting direction.
Trigger and Invalidation
Note the exact trigger and the invalid level before reading the signal. If a boundary reclaim fails, the thesis no longer holds.
Reading Changes Over Time
Watch how the signal evolves: a rapid IV expansion against the thesis is a sign conditions have changed.
Common Process Errors to Avoid
- Using PCR as a standalone buy/sell trigger without price confirmation.
- Ignoring IV-bias shifts after a signal appears when risk conditions have clearly changed.
- Taking boundary breaks with poor liquidity and wide spreads.
- Overfitting to a single expiry when term structure is materially different.
- Increasing size after invalidation instead of respecting predefined risk.
Practical FAQ for Active Traders
Should I always trade high PCR as bullish reversal?
No. High PCR is context, not a signal by itself. Use support behavior, trend strength, and volatility state to decide whether it is a reversal or continuation setup.
When is multi-expiry mode better?
Use combined expiries for structural OI zones and broader positioning. Use single expiry when you need near-term precision around weekly moves.
How should I combine IV-bias with trading status?
The highest quality setups are usually where IV-bias and boundary behavior align. Example: rising put IV with support failure is stronger bearish evidence than either metric alone.
Option OI screener for F&O stocks
The Option OI Screener combines put-call ratio, implied-volatility bias and open-interest boundaries across F&O symbols, so you can open only the option chains where those inputs line up.
PCR and OI levels are context, not signals. Confirm with price structure and liquidity at the relevant strikes, and define the stop before entry.
Should I always trade high PCR as bullish reversal?
No. High PCR is context, not a signal by itself. Use support behavior, trend strength, and volatility state to decide whether it is a reversal or continuation setup.
When is multi-expiry mode better?
Use combined expiries for structural OI zones and broader positioning. Use single expiry when you need near-term precision around weekly moves.
How should I combine IV-bias with trading status?
The highest quality setups are usually where IV-bias and boundary behavior align. Example: rising put IV with support failure is stronger bearish evidence than either metric alone.
Related JustTicks tools: Option Chain, Put Call Ratio, Trending OI