I too am invested in VTX. I am also down about 75% of my BTC; I invested in April. I am however up when I look at the value in dollars in April of those shares versus the value in dollars now; up about 300% in dollar terms. The "problem" is that currently every investment in the world is pretty much falling in relation to Bitcoin.
VTX were originally sold as shares pegged to a dollar value of $30.00. I actually bought them somewhat as a hedge against Bitcoin going up. When Bitcoin dropped to a low at the beginning of July recall that the price of VTX went up in BTC terms. Now we are in a situation where both Bitcoin and Virtex are soaring; however in dollar terms Bitcoin is a rocket and Virtex a weather balloon.
Another reason VTX has fallen is because there was no dividend paid in the fourth quarter of this year. The next dividend announcement is the first quarter of 2014. Hopefully there will be a dividend paid then or I am afraid these will become lead balloons (relatively speaking of course in relation to Bitcoin).
I believe the VTX BTC based price will stabilize and then start going up once Bitcoin itself somewhat stabilizes. If the price of Bitcoin actually falls (bite my tongue

) then the Virtex shares should go up. If a good dividend is announced then that should also push the shares up.
On the customer side, I have used CaVirtEx exclusively since August 2011 to trade BTC and they are excellent and very professional. They should remain the dominant exchange in Canada. Also, I believe we need to support the infrastructure around Bitcoin to help it succeed. I believe CaVirtEx is an excellent company and deserves our support, although you need to consider the growth in terms of a real world company and dollar value.