Put-Call Ratio (Open Interest) (180-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

BlackRock (BLK) had 180-Day Put-Call Ratio (Open Interest) of 1.2130 for 2026-04-06.

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Figures for 2026-04-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2811
Historical Volatility (Parkinson)	0.2566
Implied Volatility (Calls)	0.3411
Implied Volatility (Puts)	0.3310
Implied Volatility (Mean)	0.3360
Put-Call Implied Volatility Ratio	0.9706
Implied Volatility Skew	0.0520
Option Statistics
Put-Call Ratio (Volume)	0.7778
Put-Call Ratio (Open Interest)	1.2130