TVIX - Where Do You Put Your Stop?

I think I should look at the big picture (30 min chart) and put my stop bigger or just wait for a better signal...

TVIX has the same pattern as VXX, but of course TVIX has bigger profit potential...

The arrow was my entry but was stopped few bars after...
If you are playing this stock, what is your stop and your target?

Well, better luck next week for me...