Put-Call Ratio (Volume) (90-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Nasdaq, Inc. (NDAQ) had 90-Day Put-Call Ratio (Volume) of 0.1190 for 2026-08-20.

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Figures for 2026-08-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3317
Historical Volatility (Parkinson)	0.2836
Implied Volatility (Calls)	0.2875
Implied Volatility (Puts)	0.2725
Implied Volatility (Mean)	0.2800
Put-Call Implied Volatility Ratio	0.9477
Implied Volatility Skew	0.0552
Option Statistics
Put-Call Ratio (Volume)	0.1190
Put-Call Ratio (Open Interest)	0.4399