Put-Call Ratio (Volume) (20-Day)

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

Cogent Communications Holdings, Inc. (CCOI) had 20-Day Put-Call Ratio (Volume) of 0.4772 for 2026-06-05.

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Figures for 2026-06-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9475
Historical Volatility (Parkinson)	0.7425
Implied Volatility (Calls)	0.9014
Implied Volatility (Puts)	1.0045
Implied Volatility (Mean)	0.9529
Put-Call Implied Volatility Ratio	1.1144
Implied Volatility Skew	-0.0607
Option Statistics
Put-Call Ratio (Volume)	0.4772
Put-Call Ratio (Open Interest)	0.0915