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.

Arcturus Therapeutics Holdings Inc. (ARCT) had 120-Day Put-Call Ratio (Open Interest) of 0.4979 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	1.4386
Historical Volatility (Parkinson)	0.7596
Implied Volatility (Calls)	1.2804
Implied Volatility (Puts)	1.4313
Implied Volatility (Mean)	1.3559
Put-Call Implied Volatility Ratio	1.1178
Implied Volatility Skew	0.1453
Option Statistics
Put-Call Ratio (Volume)	0.1676
Put-Call Ratio (Open Interest)	0.4979