Put-Call Ratio (Open Interest) (120-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.

Ameren Corporation (AEE) had 120-Day Put-Call Ratio (Open Interest) of 0.5274 for 2026-02-20.

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Figures for 2026-02-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1582
Historical Volatility (Parkinson)	0.1548
Implied Volatility (Calls)	0.1997
Implied Volatility (Puts)	0.2115
Implied Volatility (Mean)	0.2056
Put-Call Implied Volatility Ratio	1.0589
Implied Volatility Skew	0.0396
Option Statistics
Put-Call Ratio (Volume)	0.0109
Put-Call Ratio (Open Interest)	0.5274