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S&P500 ProShares (SDS) volatility elevated on market weakness Aug 8, 2011 07:44AM
UltraShort S&P500 ProShares (SDS) volatility increases on sharp rally Aug 5, 2011 08:16AM
UltraShort S&P 500 ProShares (SDS) volatility flat as stocks have moved down seven-days Aug 2, 2011 01:07PM
UltraShort S&P 500 ProShares (SDS) August calls active on elevated volatility Aug 1, 2011 11:33AM
ProShares UltraShort S&P 500 (SDS) volatility low at 38 as index trends lower Jan 21, 2011 08:02AM


Jun 29, 2010 11:38AM UltraShort S&P500 ProShares (SDS) call volume and volatility increases
Mar 19, 2010 07:48AM UltraShort S&P500 ProShares (SDS) volatility low as index trends lower