I've been spending a good bit of time with the VIX market recently, focusing on the term structure of both the futures and the various VIX indexes. The chart of the futures market as of this afternoon is shown below (courtesy of vixcentral.com). The common pattern is either a rather consistent trend up or down as you go out in time. This chart drops for a few weeks, rises going into next month's expiration and then the usual pattern of drops (given the current elevated VIX). I've traded futures for years, but am new to VIX. Any explanations of this would be appreciated. Thanks.