Long-volatility products VXX and UVXY are not cheap just because the VIX is below 15, since they hold VIX futures rather than the index. The front-month future is around 17, so buyers already pay a significant premium to spot volatility, and in contango the constant rolling of futures is a steady drag. Structurally, contango favors the short side of VIX futures, VXX and UVXY over time, though volatility can explode very quickly. x.comÂ