ProShares UltraShrt Lehman 7-10 Yr ETF (PST) volatility at two-year lows

August 9, 2011 9:39 AM EDT
ProShares UltraShrt Lehman 7-10 Yr ETF (NYSE: PST) over all option implied volatility of 21 is above its six-month average of 16 according to Track Data, suggesting slightly larger price movement.


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