DR Barton advised against trading TVIX only a few days ago. http://www.vantharp.com/Tharps-Thoughts/569_Mar_21_2012.htm <i>This is particularly true when strange upsets happen. Just fourteen months after its inception, one volatility fund (TVIX) became so popular that it was trading more than 20 million shares a day. Its rapid growth made keeping up with the risk management parameters increasingly more challenging for its issuer. When the issuer could no longer maintain those parameters, it halted the creation of new sharesâessentially turning it into a closed-end fund. That action changed the very nature of the instrument, but many people unwittingly continue to trade this âvolatilityâ fund thinking that it still tracks the VIX. It doesn't anymore. Weâll dig more into the details of this unusual occurrence next week. Until then, a word to the wise: Be sure to avoid trading TVIX. It isnât what you think! Caveat emptor.</i>