Wait. How long have you been trading XIV, VXX, UVXY etc? This is completely normally processing. This is because VIX future trading ends at 4:15pm rather than 4:00pm for ETFs. Those prices at 4:15pm are more indicative for next day's trading.
This also happened on FRIDAY 4/12/12 AND GUESS WHAT HAPPENED ON MONDAY 4/15. XIV got crushed, It was a classic low volume push up into close TRAP then drop in Afterhours. Now your stuck and you wait it till next trading day and boom crushed!!
That might happen, but also on 4/12, XIV hit its high of 25.7. You know when volatility futures get that low, there is bound to be some reversion to mean. We are about 20% lower than back then. My hunch is that it may pop back up to 21.30-40 on Monday morning (21.27 was official close at 4pm on Fri) then drop when market opens at 9:30. Hard to say what general market will do on Monday though. I think it will be slightly up or sideways, with the VIX dropping to 14.5 or so. But what do I know? We'll see what the big boys want the market to do. Though absent any big financial scares in Europe or some link between Boston bombings and a Chechen terrorist plot, volatility is unlikely to increase. We shall see.