Put-Call Ratio (Open Interest) (60-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.

Serve Robotics Inc. (SERV) had 60-Day Put-Call Ratio (Open Interest) of 0.4235 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9553
Historical Volatility (Parkinson)	0.8192
Implied Volatility (Calls)	0.9893
Implied Volatility (Puts)	1.0487
Implied Volatility (Mean)	1.0190
Put-Call Implied Volatility Ratio	1.0600
Implied Volatility Skew	-0.0011
Option Statistics
Put-Call Ratio (Volume)	0.0562
Put-Call Ratio (Open Interest)	0.4235