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.
Halozyme Therapeutics, Inc. (HALO) had 120-Day Put-Call Ratio (Open Interest) of 0.6329 for 2026-05-21.
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