Put-Call Ratio (Volume) (20-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Tema Space Innovators ETF (NASA) had 20-Day Put-Call Ratio (Volume) of 0.5370 for 2026-08-18.

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Figures for 2026-08-18

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5632
Historical Volatility (Parkinson)	0.4268
Implied Volatility (Calls)	0.4492
Implied Volatility (Puts)	0.4756
Implied Volatility (Mean)	0.4624
Put-Call Implied Volatility Ratio	1.0588
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.5370
Put-Call Ratio (Open Interest)	0.1937