Historical Volatility (Close-to-Close) (180-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.

Huachen AI Parking Management Technology Holding Co., Ltd (HCAI) had 180-Day Historical Volatility (Close-to-Close) of 0.8970 for 2025-12-04.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.8970
Historical Volatility (Parkinson)	1.1108
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)	--