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.
Tandem Diabetes Care, Inc. (TNDM) had 120-Day Put-Call Ratio (Open Interest) of 0.2753 for 2026-01-20.
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