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.

Norfolk Southern Corporation (NSC) had 20-Day Put-Call Ratio (Open Interest) of 0.7435 for 2026-06-01.

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Figures for 2026-06-01

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3270
Historical Volatility (Parkinson)	0.2505
Implied Volatility (Calls)	0.2582
Implied Volatility (Puts)	0.2729
Implied Volatility (Mean)	0.2656
Put-Call Implied Volatility Ratio	1.0569
Implied Volatility Skew	0.0468
Option Statistics
Put-Call Ratio (Volume)	0.1661
Put-Call Ratio (Open Interest)	0.7435