PCR Analysis: A Structured Framework for Index Options
How to analyse put-call ratio beyond the headline number — expiry splits, strike context, and intraday PCR deltas for Nifty trading.
Beyond the Single Number
Headline PCR — total put OI divided by call OI — is a starting point, not analysis. Serious PCR analysis decomposes by expiry, compares to rolling averages, and inspects which strikes drive changes.
A rising PCR might be protective puts at deep OTM strikes — hedging, not bearish speculation. Without option chain detail, PCR misleads.
Framework Steps
Step one: record opening PCR for current week expiry and next week. Step two: note 5-day and 20-day median for same expiry slice. Step three: identify top three strikes contributing to overnight PCR change. Step four: map spot relative to those strikes.
Intraday: track PCR delta every 30 minutes on trend days — divergence from price signals positioning shifts.
- Near expiry PCR: most relevant for weekly traders
- Far expiry PCR: positional hedging — slower moving
- PCR vs price divergence: investigate before fading
- Volume PCR: confirm OI PCR with today's flow
Combining PCR with OI
Pair PCR with call and put OI at highest strikes. Bullish scenario: PCR moderate, call OI building above spot on rises. Bearish: PCR elevated with puts adding at strikes just below spot, not only deep hedges.
On election or budget weeks, PCR baselines shift — compare to event-adjusted history, not generic averages.
Common PCR Mistakes in Research
Using index PCR to time stock options. Ignoring roll week when traders move OI to next expiry — distorts daily change. Treating extreme PCR as automatic reversal without catalyst.
Document your PCR rules in your trading journal and review hit rate quarterly.
Frequently Asked Questions
- What PCR range is normal for Nifty?
- Ranges shift by regime — maintain your own rolling distribution rather than fixed magic numbers.
- Intraday or EOD PCR?
- Both — opening for plan, intraday for execution, close for next-day context.
- Does PCR predict gap openings?
- Overnight gaps depend on global cues; PCR alone is weak for gap forecast.
Key Takeaways
- Decompose PCR by expiry and strike drivers.
- Compare to rolling medians, not fixed thresholds.
- Validate PCR moves with chain OI detail.
- Event weeks need adjusted baselines.
Related Articles
- PCR Explained: Put-Call Ratio for Option Trading SentimentUnderstand put-call ratio (PCR), how to read it on Nifty and Bank Nifty, and why PCR analysis matters for intraday bias.
- Open Interest Explained: The Core of OI AnalysisLearn what open interest means, how it changes intraday, and how to use OI analysis for Nifty and Bank Nifty option trading decisions.
- Election Day Options: Sentiment, Gaps, and OI ShiftsCase study patterns for Indian election result days — how Nifty options priced uncertainty and what traders learned from OI and PCR.