Sometimes Inverse / Leveraged Volatility Funds Outperform Their Leverage Factors

From August 2nd  to October 3rd, 2011 Barclays’ S&P 500 VIX Short Term Futures ETN (VXX) had a great 137% runup.  In that same period VelocityShares’ TVIX  ETN, 2X leveraged on the same index went up an astonishing 348%,  73 percent more than its 2X leverage factor would project.   How is that possible?  Don’t inverse and leveraged funds always underperform the index they’re tracking? Normal …

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