What is the Put-Call Ratio (PCR) in the Share Market?

Key Takeaways:

• The put-call ratio is a technical indicator used in option trading. The data is taken from the option chain.

• The PCR is calculated based on the open interest of the specific day or based on the volume of option trading.

• Nifty put-call ratio data is widely tracked by investors and traders to identify the market sentiment based on option data.

The Put Call Ratio (PCR) is one of the most widely used indicators in the share market, especially among traders involved in option trading. It provides insights into market sentiment by comparing the number of put options traded to call options.

Whether you are analysing Nifty PCR, Bank Nifty trends, or overall derivatives data, understanding PCR can significantly improve your decision-making.

This article explains the meaning of the Put-Call Ratio, its calculation methods, interpretation, and how traders use it effectively.

Meaning of Put-Call Ratio

The Put Call Ratio (PCR) is a technical indicator that measures the ratio of traded put options to call options in the market. It reflects investor sentiment on whether traders are more bearish or bullish.

Traders usually buy put options when they expect the market to fall and buy call options when they expect the market to rise. Because of this behaviour, the put-call ratio shows whether traders are feeling pessimistic or optimistic about the market.

A high put-call ratio means more puts than calls are being traded, which indicates a bearish sentiment and can sometimes signal a possible market reversal.

On the other hand, a low put-call ratio means more calls than puts are being traded, which indicates a bullish sentiment and may suggest a possible correction.

PCR is commonly used in option trading for indices like Nifty and Bank Nifty.

How is the Put-Call Ratio Calculated?

There are two major ways to calculate the Put Call Ratio (PCR):

1. Based on the Open Interest of a Specific Day

This method uses the total open interest (OI) of put options and call options.

Formula: PCR = Total Put Open Interest / Total Call Open Interest

Example:

Total Put OI = 8,00,000 contracts Total Call OI = 5,00,000 contracts PCR = 8,00,000 ÷ 5,00,000 = 1.6

Interpretation:

A PCR of 1.6 suggests that there are significantly more put positions than call positions, indicating bearish sentiment or a potential bullish reversal (contrarian view).

2. Based on the Volume of Options Trading

This method calculates PCR using the daily traded volume of put and call options.

Formula: PCR = Total Put Volume / Total Call Volume

Example:

Put Volume = 12,00,000 contracts Call Volume = 10,00,000 contracts PCR = 12,00,000 ÷ 10,00,000 = 1.2

Interpretation:

This indicates slightly higher put activity compared to call activity, suggesting cautious or mildly bearish sentiment.

Analysis of Put-Call Ratio

The put-call ratio helps understand market sentiment by comparing how many put options are traded versus call options.

• If the PCR is above 1, it means more put options are being traded than call options. This usually shows that traders are expecting the market to fall, so the sentiment is bearish.

• If the PCR is below 1, it means more call options are being traded than put options. This suggests that traders expect the market to rise, showing a bullish sentiment.

• A PCR of exactly 1 is not very useful for judging market direction. This is because traders generally buy more call options than put options.

• In equity markets, an average PCR of around 0.7 is considered normal and is a better reference point to understand sentiment.

• When the PCR rises above 0.7 or moves toward 1, it indicates that more traders are buying put options. This could mean they are either protecting their investments or expecting the market to go down.

• When the PCR falls below 0.7 and moves closer to 0.5, it suggests that traders are more interested in call options, which indicates a positive or bullish market outlook.

Interpretation of the Put-Call Ratio

PCR values are interpreted in ranges rather than fixed numbers:

What are Nifty, Banknifty and Sensex PCR?

PCR is widely tracked for major indices in India:

Nifty PCR

It refers to the Put Call Ratio of Nifty 50 options contracts. Nifty 50 is the benchmark index of the National Stock Exchange (NSE). The nifty options attract huge volume and have high liquidity.

Nifty options had a weekly and monthly expiry. The Nifty PCR data is crucial when analysing market sentiment.

Check Nifty PCR.

Bank Nifty PCR

Banknifty options are the second most tradable sectoral index in NSE. The Banknifty PCR shows the call and put option build-up and sentiment of the banking index.

Banknifty index consists of public and private sector banks. If the sentiment is positive, that means banks are likely to perform well in the short term and vice versa.

Banknifty put-call ratio helps traders to identify the direction of the Banknifty index. This index had a monthly expiry, thus it attracts high volume in the second half of the month.

Check Banknifty PCR.

Sensex PCR

Sensex PCR data is crucial for those who actively trade in Sensex derivatives. It is the benchmark index of the Bombay Stock Exchange (BSE).

The Sensex index consists of the top 30 companies listed in India. When the Sensex is bullish, the market sentiment remains positive. Whereas, when the Sensex is bearish, the market sentiment remains negative.

Sensex PCR data shows the sentiment of call and put options traders. It gives insights into the open interest built up in the options.

Check Sensex PCR.

How to Use the Put-Call Ratio in Option Trading?

The Put Call Ratio (PCR) is a powerful tool when used correctly in option trading. Here are practical ways to use it:

1. Identify Market Sentiment

Use the put-call ratio to understand overall market direction, where higher values suggest a bearish mood and lower values indicate bullish expectations.

2. Spot Reversal Opportunities

Extremely high or low PCR values can signal possible reversals, helping traders identify good buying or selling opportunities at turning points.

3. Combine with Support and Resistance

When PCR aligns with key support or resistance levels, it strengthens trading decisions, confirming potential buying near support or selling near resistance.

4. Use with Open Interest Data

Combining PCR with open interest helps track smart money activity, identifying strong support or resistance zones based on option buildup patterns.

5. Intraday and Positional Trading

Intraday traders focus on volume-based PCR for short-term moves, while positional traders prefer open interest PCR for better long-term market analysis.

Significance of Put-Call Ratio

The importance of the Put Call Ratio (PCR) in the share market includes:

1. Market Sentiment Indicator

PCR gives a quick view of market mood, showing whether traders are bullish, bearish, or neutral based on options trading activity.

2. Contrarian Indicator

PCR helps identify overbought or oversold conditions, allowing traders to take opposite positions when market sentiment becomes excessively one-sided.

3. Risk Management Tool

Traders use PCR to hedge their positions, reduce potential losses, and better manage downside risks during uncertain or volatile market conditions.

4. Useful for Index Trading

PCR is widely used in index trading, especially for indices like Nifty and Bank Nifty, to understand broader market trends clearly.

5. Helps in Strategy Building

PCR helps traders build strategies such as straddles, strangles, spread trading, and hedging strategies based on expected market movements and volatility.

Limitations of the Put-Call Ratio

While PCR is useful, it has certain limitations:

1. Not a Standalone Indicator

PCR should not be used alone, as relying only on it can give wrong signals without support from technical and fundamental analysis.

2. Extreme Values Can Mislead

Very high or very low PCR values do not always mean market reversal, as trends can continue despite extreme sentiment levels.

3. Influenced by Hedging Activity

Institutional investors often hedge positions, which can distort PCR readings and make it harder to accurately judge true market sentiment.

4. Time Lag

Open interest-based PCR reflects already-built positions, so it may not capture real-time changes in market sentiment.