Put-Call Ratio (Volume) (30-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Arqit Quantum Inc. (ARQQ) had 30-Day Put-Call Ratio (Volume) of 0.1772 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	1.1209
Historical Volatility (Parkinson)	0.9418
Implied Volatility (Calls)	0.8145
Implied Volatility (Puts)	0.9816
Implied Volatility (Mean)	0.8981
Put-Call Implied Volatility Ratio	1.2051
Implied Volatility Skew	-0.0118
Option Statistics
Put-Call Ratio (Volume)	0.1772
Put-Call Ratio (Open Interest)	0.9604