Since UVXY is 52 week low..
Methinks you do not fully understand the product and the mathematics involved.
You wonder why SVXY hasn't reached a 52 week high when UVXY has hit a 52 week low.
First, you would do better to think of SVXY as an inverse VXX rather than UVXY in that VXX is 1X and UVXY is 2X.
On the other hand, however, both UVXY and SVXY are both ETFs while VXX is an ETN.
ETPs that are based on an index decay as they oscillate around that index. Leveraged ETPs such as TVIX and UVXY magnify that decay and accentuate the continous decay from contango.
The inverse ETPs such as SVXY and VXX also experience decay as the VIX rotates from +x% to -x% and back to baseline. That is why they will NOT make new highs as their b*stard cousins make new lows.
This phenomenom was discussed in notes on March 5 and 6.
if not, search "inverse ETF decay" on youtube...
That's not how this instrument works. If you don't understand the math, don't mess with it.
Weak for a reason...I'd be careful up here. This is becoming a real balancing act