Implied Volatility (Calls) (150-Day)

Implied Volatility (Calls): The forecasted future volatility of the security over the selected time frame, derived from the pricing of the at-the-money call options with the relevant expiration date.

FlexShares Morningstar Global Upstream Natural Resources ETF (GUNR) had 150-Day Implied Volatility (Calls) of 0.1888 for 2025-12-15.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.1248
Historical Volatility (Parkinson)	0.0952
Implied Volatility (Calls)	0.1888
Implied Volatility (Puts)	0.1969
Implied Volatility (Mean)	0.1929
Put-Call Implied Volatility Ratio	1.0427
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	2.2759