Put-Call Ratio (Open Interest) (150-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.
ProShares UltraShort Nasdaq Biotechnology (BIS) had 150-Day Put-Call Ratio (Open Interest) of 0.0989 for 2026-04-20.
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