This could just be down to how the buying of futures was handled at that critical period around vix futures close at 4.15pm, but they never got back in sync, and now never will with the TVIX 2x and UVXY 1.5x leverage
I scaled UVXY up 5.5x just so it aligned with the TVIX price.
UVXY needs plotting on a logarithmic scale to properly track the exponential decay. Bitcoin's rise was impressive, but inverted and plotted on the same scale it doesn't beat UVXY's decline.
