personally, I think everyone talking about the 2100 number is not as relevant as the VXX....after taking a hard look at the charts.
I'm not going to give my estimates, but these charts are almost identical, except VXX has a lower support level going back to 12.3.15 and 11.3.15
these also correlate to 2100 on the S&P by the way. The reason I would think the TVIX is lower % wise is decay.
I'll let you guys do your own chart study and come up with your number, not because I am being a dick, but because I am holding substantial shares and there's enough doom and gloom talk in here already.