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.

Align Technology, Inc. (ALGN) had 30-Day Put-Call Ratio (Volume) of 4.9186 for 2025-11-20.

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Figures for 2025-11-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3271
Historical Volatility (Parkinson)	0.3418
Implied Volatility (Calls)	0.4563
Implied Volatility (Puts)	0.4496
Implied Volatility (Mean)	0.4530
Put-Call Implied Volatility Ratio	0.9853
Implied Volatility Skew	0.0822
Option Statistics
Put-Call Ratio (Volume)	4.9186
Put-Call Ratio (Open Interest)	0.6740