Put-Call Ratio (Volume) (30-Day)

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

TransAlta Corporation (TAC) had 30-Day Put-Call Ratio (Volume) of 0.0825 for 2025-10-13.

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Figures for 2025-10-13

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3928
Historical Volatility (Parkinson)	0.3645
Implied Volatility (Calls)	0.9302
Implied Volatility (Puts)	0.7635
Implied Volatility (Mean)	0.8469
Put-Call Implied Volatility Ratio	0.8208
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0825
Put-Call Ratio (Open Interest)	0.4269