Usually the daily return of VXX is close to that of the opposite of XIV. Since December 2010, when XIV started trading, the sum of the returns of XIV and VXX has had mean of 0.05% and standard deviation of 0.33%. For the last few days, a portfolio of long VXX and XIV has done terribly, losing about 2% a day (see below). Daily management fees or differential cash returns cannot explain this. Can anyone explain the greatly diverging returns? I understand that VXX returns will not be the opposite the XIV returns over a holding period of many days, but I thought the two products should track each other closely on a daily basis. VXX and XIV are exchange-traded notes, and a spike in volatility (which generally benefits VXX) could increase the chance of a bankruptcy of Credit Suisse, the issuer. But I don't this explains the underperformance of VXX, because VIXY, an ETF that does not have Credit Suisse credit risk, is doing almost as badly as VXX.
Date VXX XIV VXX+XIV
6/24/2016 23.66 (26.79) (3.13)
6/27/2016 (0.12) (2.45) (2.57)
6/28/2016 (9.58) 7.74 (1.84) as of 3pm
Date VXX XIV VXX+XIV
6/24/2016 23.66 (26.79) (3.13)
6/27/2016 (0.12) (2.45) (2.57)
6/28/2016 (9.58) 7.74 (1.84) as of 3pm