The Put-Call Ratio (PCR) is a popular technical indicator used by investors to assess market sentiment. It is calculated by dividing the volume or open interest of put options by call options over a specific time period. A higher PCR suggests bearish sentiment, while a lower PCR indicates bullish sentiment.
However, no PCR can be considered ideal, but usually, a PCR below 0.7 is typically viewed as a strong bullish sentiment while a PCR more than 1 is usually considered as a strong bearish sentiment.