Do you understand the structure? Not a long term investmentThis investment lost 11% in 2010, 44% in 2011, 97% in 2012, 91% in 2013, and -62% in 2014 - if you were able to get enough units to short it would be a license to print money. Due to the negative roll yield on the futures contract even when volatility increases you lose money. Unless you are using this to move in, and out of a trade in a single day tracking will not be correct. I don't know who is on here marketing this investment as a longer term play on volatility, but it just isn't so - I know people who have lost a considerable amount of money playing this investment the wrong way, and this is a warning to those who do the same. Even taking a date just prior to it's last big spike in Sep 2011 the etf would have been effectively trading at $80,480 dropping to the price of $12.63 right now.