Historical Volatility (Close-to-Close) (90-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

CollPlant Biotechnologies Ltd. Sponsored ADR (CLGN) had 90-Day Historical Volatility (Close-to-Close) of 1.4213 for 2025-08-28.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	1.4213
Historical Volatility (Parkinson)	1.1968
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	2.7517