Put-Call Implied Volatility Ratio (30-Day)

Put-Call Implied Volatility Ratio: The ratio of implied volatilities of the at-the-money puts to the at-the-money calls.

KraneShares Bosera MSCI China A 50 Connect Index ETF (KBA) had 30-Day Put-Call Implied Volatility Ratio of 1.7475 for 2025-08-28.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2028
Historical Volatility (Parkinson)	0.0452
Implied Volatility (Calls)	0.1632
Implied Volatility (Puts)	0.2853
Implied Volatility (Mean)	0.2243
Put-Call Implied Volatility Ratio	1.7475
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.5238
Put-Call Ratio (Open Interest)	0.2645