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 1.8158 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4574
Historical Volatility (Parkinson)	0.6736
Implied Volatility (Calls)	1.0740
Implied Volatility (Puts)	1.0797
Implied Volatility (Mean)	1.0769
Put-Call Implied Volatility Ratio	1.0053
Implied Volatility Skew	0.0512
Option Statistics
Put-Call Ratio (Volume)	1.8158
Put-Call Ratio (Open Interest)	0.3137