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.

Twist Bioscience Corporation (TWST) had 150-Day Put-Call Ratio (Open Interest) of 0.5728 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6426
Historical Volatility (Parkinson)	0.6213
Implied Volatility (Calls)	0.7657
Implied Volatility (Puts)	0.7870
Implied Volatility (Mean)	0.7763
Put-Call Implied Volatility Ratio	1.0279
Implied Volatility Skew	-0.0096
Option Statistics
Put-Call Ratio (Volume)	0.0152
Put-Call Ratio (Open Interest)	0.5728