Put-Call Ratio (Volume) (120-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Tandem Diabetes Care, Inc. (TNDM) had 120-Day Put-Call Ratio (Volume) of 0.0446 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6674
Historical Volatility (Parkinson)	0.5843
Implied Volatility (Calls)	0.7088
Implied Volatility (Puts)	0.7664
Implied Volatility (Mean)	0.7376
Put-Call Implied Volatility Ratio	1.0813
Implied Volatility Skew	0.0011
Option Statistics
Put-Call Ratio (Volume)	0.0446
Put-Call Ratio (Open Interest)	0.2753