Cool paper (found via Ernie Chan's blog) about extracting roll returns from VIX futures.
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2094510
Basically, if VIX futures are in contango, short the closest front month with a matching ES contract (Mar, Jun, Sep, Dec), and do the reverse if backwardated. Eventually they should converge with "cash VIX."
Why am I posting this on a spread trading forum? Because you hedge your short (long) VIX futures position with a short (long) ES futures position, which sort of tracks the inverse of the cash VIX movement. Sort of...
Looking at the last few years of data, it has some promise - with some caveats:
1. When the market plunges and VIX goes nuts, your VIX/ES hedge ratio shifts, and you lose money. This happened in 2008 and August 2011. However, it's not a "Black Swan" kind of loss. The dirty hedge keeps the loss manageble.
2. Sometimes (see #1 above), front-month VIX futures will go "off the board" at a premium to cash VIX, which disrupts the convergence.
Based on the two contracts' volatility, the hedge ratio is 1:1, despite the notional value of the ES contract being 4x greater. (The VIX contract is WILD!)
Just some food for thought.