Put-Call Ratio (Volume) (180-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 180-Day Put-Call Ratio (Volume) of 0.1173 for 2025-05-21.

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Figures for 2025-05-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4308
Historical Volatility (Parkinson)	0.4188
Implied Volatility (Calls)	0.4536
Implied Volatility (Puts)	0.4543
Implied Volatility (Mean)	0.4540
Put-Call Implied Volatility Ratio	1.0015
Implied Volatility Skew	0.0261
Option Statistics
Put-Call Ratio (Volume)	0.1173
Put-Call Ratio (Open Interest)	2.8957