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Russell 2000 (IWM) put volatility spikes to 32 as index sells off 3.2%
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Russell 2000 (IWM) volatility flat at 22
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iShares Russell 2000 Index (IWM) puts three times as active as calls on Japanese earthquake headlines
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Russell 2000 overall implied volatility at 21; 26-week average is 25.
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iShares Trust Russell 2000 Index Fund (IWM) puts active as fund rally's 2.4%
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Russell 2000 (NYSE: IWM) overall implied volatility at 30; 26-week average is 27
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iShares Russell 2000 (IWM) options active on elevated volatility
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Russell 2000 (IWM) puts active on elevated volatility as markets stabilize
