Put-Call Ratio (Volume) (60-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 60-Day Put-Call Ratio (Volume) of 0.0987 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4933
Historical Volatility (Parkinson)	0.5570
Implied Volatility (Calls)	0.7834
Implied Volatility (Puts)	0.6873
Implied Volatility (Mean)	0.7354
Put-Call Implied Volatility Ratio	0.8774
Implied Volatility Skew	0.1080
Option Statistics
Put-Call Ratio (Volume)	0.0987
Put-Call Ratio (Open Interest)	0.2651