What is the Put-Call Ratio (PCR)?
The Put-Call Ratio (PCR) is a popular sentiment indicator used by options traders to gauge the overall mood of the market. It is calculated by dividing the total number of outstanding Put options (Open Interest) by the total number of outstanding Call options. Because institutional traders are typically the ones writing (selling) options, a high PCR indicates that smart money is writing puts, expecting the market to hold support or rise.
How to Interpret PCR Values
While PCR interpretations can vary slightly based on market conditions, the standard benchmarks are:
- PCR > 1.0 (Bullish): More Puts are being written than Calls. This suggests strong support levels are being built, and the market sentiment is bullish. A reading above 1.2 is generally considered a strong bullish bias.
- PCR < 1.0 (Bearish): More Calls are being written than Puts. This indicates heavy resistance is being placed by call writers, suggesting a bearish or capped upside. A reading below 0.7 is a strong bearish signal.
- Extreme PCR (Contrarian Signal): When PCR hits extreme highs (e.g., > 1.5) or extreme lows (e.g., < 0.5), it often acts as a contrarian indicator. An extremely high PCR means the market is highly overbought and due for a correction, while an extremely low PCR suggests the market is oversold and a short-covering bounce is imminent.
Combining PCR with Max Pain
PCR is most effective when used alongside "Max Pain." Max Pain is the strike price where the highest number of options (both Calls and Puts) will expire worthless, causing maximum financial loss to option buyers and maximum profit to option sellers. If the PCR is bullish, and the current spot price is below the Max Pain level, there is a high probability that the index will rally toward the Max Pain strike before expiry.