If anyone was taking investing advice from me RE: XIV, you may want to consider selling part or all of your positions today or tomorrow. Not sure the current level is sustainable (or warranted). If the market doesn't do anything exciting, XIV will probably be $32+ by Aug. Or it could take a crap and drop back to $20 or less.
As always, side effects caused by unwarranted financial advice may include itching, sneezing, running nose, thinner wallet, loss of retirement accounts, angry spouses, and painful urination. Use your discretion.