Put-Call Ratio (Open Interest) (90-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

PTC Inc. (PTC) had 90-Day Put-Call Ratio (Open Interest) of 0.1703 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7037
Historical Volatility (Parkinson)	0.3391
Implied Volatility (Calls)	0.0533
Implied Volatility (Puts)	0.0629
Implied Volatility (Mean)	0.0581
Put-Call Implied Volatility Ratio	1.1786
Implied Volatility Skew	-0.0237
Option Statistics
Put-Call Ratio (Volume)	2.1071
Put-Call Ratio (Open Interest)	0.1703