Put-Call Ratio (Open Interest) (60-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.

Chunghwa Telecom Co., Ltd. (CHT) had 60-Day Put-Call Ratio (Open Interest) of 0.4234 for 2025-10-28.

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Figures for 2025-10-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0999
Historical Volatility (Parkinson)	0.0893
Implied Volatility (Calls)	0.1628
Implied Volatility (Puts)	0.3175
Implied Volatility (Mean)	0.2402
Put-Call Implied Volatility Ratio	1.9501
Implied Volatility Skew	0.0778
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.4234