Put-Call Ratio (Open Interest) (30-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.

KraneShares China Technology & Semiconductor STAR 50 Index ETF (KSTR) had 30-Day Put-Call Ratio (Open Interest) of 0.5302 for 2026-09-01.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.4425
Historical Volatility (Parkinson)	0.1143
Implied Volatility (Calls)	0.5213
Implied Volatility (Puts)	0.4747
Implied Volatility (Mean)	0.4980
Put-Call Implied Volatility Ratio	0.9106
Implied Volatility Skew	0.0842
Option Statistics
Put-Call Ratio (Volume)	0.4637
Put-Call Ratio (Open Interest)	0.5302