What is the Put-Call Ratio (PCR)? A Simple Guide
The Put-Call Ratio (PCR) compares the total open interest or volume of puts against calls. It is found by dividing put figures by call figures. PCR is used as a sentiment indicator, and it is often read in a contrarian way at extremes.
The Put-Call Ratio is a popular sentiment gauge that packs a lot into one number. It hints at whether the crowd is leaning bullish or bearish.
But PCR is easy to misread, so it pays to understand it properly. Let us unpack it with a real example and the points that matter. You can find the data behind it on Stockk.
Key Takeaways
- PCR divides put activity by call activity.
- It is used as a sentiment indicator.
- A high PCR means heavy put activity.
- Extremes are often read in a contrarian way.
- It works best with price action, not alone.
How is PCR calculated?
PCR = Total Put OI / Total Call OI
Take the case where the NIFTY chain around a spot of 22,600 carries total put open interest of 375 lakh and total call open interest of 380 lakh. The PCR is 375 divided by 380, which is about 0.99. A reading near 1 suggests calls and puts are roughly balanced, so positioning is neither clearly bullish nor clearly bearish.
How is PCR interpreted?
A rising PCR means puts are being traded more heavily than calls, often read as bearish sentiment. But because extremes can signal crowded positioning, many traders use PCR in a contrarian way: a very high PCR can mark excessive fear before a bounce, and a very low PCR excessive greed before a fall.
| PCR reading | Common interpretation |
|---|---|
| High | Heavy puts; possible excessive fear |
| Low | Heavy calls; possible excessive greed |
| Around 1 | Balanced sentiment |
OI-based vs volume-based PCR
PCR based on open interest reflects standing positions, while PCR based on volume reflects fresh daily activity. They can give different signals, so traders often look at both. Context and the trend matter more than the raw number.
How to use PCR sensibly
PCR works best as one input among many. Watch its trend and extremes relative to its own recent range, rather than a single fixed value, and always read it alongside price action and OI analysis. Used alone, it can easily mislead.
Stockk, run on Indira Securities, gives you access to F&O with full options data in one place. Start by opening a demat account, then explore F&O tools and the Knowledge Center.
Futures and Options are leveraged products and carry a high risk of loss that can be more than the money you put in. This article is only for learning and is not a recommendation to trade in derivatives.
Frequently Asked Questions
What does a high PCR mean?
It means put activity exceeds call activity, often read as bearish sentiment. At extremes, contrarians see it as excessive fear that could precede a bounce.
Is PCR a contrarian indicator?
Many traders use it that way, treating extreme readings as signs of crowded sentiment likely to reverse. Extremes matter more than mid-range values.
What is the difference between OI-based and volume-based PCR?
OI-based PCR reflects standing positions; volume-based PCR reflects fresh daily activity. They can give different signals, so traders use both for context.
Can PCR be used alone?
No. PCR works best alongside price action, OI and trend analysis. Alone it is unreliable, since it is a sentiment input, not a trigger.
What PCR level is considered extreme?
Extremes are judged relative to the indicator's own recent range, not a fixed number.
Investments in securities market are subject to market risks. This article is for educational purposes only and does not constitute investment advice.
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