Put-Call Ratio (Volume) (120-Day)

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

aTyr Pharma, Inc. (ATYR) had 120-Day Put-Call Ratio (Volume) of 0.1992 for 2025-08-15.

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Figures for 2025-08-15

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9126
Historical Volatility (Parkinson)	0.8571
Implied Volatility (Calls)	2.9112
Implied Volatility (Puts)	3.0706
Implied Volatility (Mean)	2.9909
Put-Call Implied Volatility Ratio	1.0548
Implied Volatility Skew	-0.0911
Option Statistics
Put-Call Ratio (Volume)	0.1992
Put-Call Ratio (Open Interest)	1.1313