Put-Call Ratio (Open Interest) (20-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.

PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ) had 20-Day Put-Call Ratio (Open Interest) of 1.5529 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1228
Historical Volatility (Parkinson)	0.1021
Implied Volatility (Calls)	0.1315
Implied Volatility (Puts)	0.1375
Implied Volatility (Mean)	0.1345
Put-Call Implied Volatility Ratio	1.0455
Implied Volatility Skew	0.0034
Option Statistics
Put-Call Ratio (Volume)	2.7234
Put-Call Ratio (Open Interest)	1.5529