Put/Call Ratio S&P 500 (SPX)

This indicator is calculated by dividing the weekly volume of all S&P 500 put options by the weekly volume of all S&P 500 call options. Big call volume appears at market tops and big put volume at bottoms. Put/call ratios of the indices like OEX and SPX are distorted and clouded by arbitrage and hedging and do therefore not always reflect true investor sentiment. The chart below shows you the SPX put/call ratio on a 4-week moving average.