Put-Call Ratio (Open Interest) (120-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 120-Day Put-Call Ratio (Open Interest) of 2.5713 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4008
Historical Volatility (Parkinson)	0.3536
Implied Volatility (Calls)	0.4472
Implied Volatility (Puts)	0.4455
Implied Volatility (Mean)	0.4464
Put-Call Implied Volatility Ratio	0.9961
Implied Volatility Skew	0.0271
Option Statistics
Put-Call Ratio (Volume)	0.0143
Put-Call Ratio (Open Interest)	2.5713