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Modalities of the “Coming” VIX Spike

Mon, Jul 7, 2008

Market commentary, Volatility

These days, you can’t escape the public outcry: traders want their VIX spike, and they want it now.

Not too long ago, the vicissitudes of the VIX used to be the privy of a fairly limited group of options traders – those that had ears to hear, as it were.  Now, if you hear or read phrases like “bear market,” “20% decline,” and “market bottom,” odds are that the phrase “VIX spike” isn’t far behind.  Nevermind whether the increased VIX coverage is appropriate or accurate or remotely helpful.  Thanks, CNBC!

The net effect of the VIX’s coming of age is that everybody and his brother now “knows” that we won’t have a short-term tradeable market bottom until the VIX spikes up into the 30 range.  Well, that claim may have held true in the recent past, but it denotes a more complex relationship than people seem to realize.

So what’s the relationship between VIX spikes and market bottoms?  Three schools of thought here, most easily viewed in modal terms:

  1. Necessity: a VIX spike is necessary for a short-term (1-3 month) market bottom to form.  This sure seems to be the consensus view these days.  Every blogger under the sun is writing that indexes won’t find a bottom until we see “a spike in the volatility index (VIX) followed by massive capitulation.” [link]  But it isn’t just individual traders who are taking this view: when you have analysts like Ryan Detrick saying things to the Wall Street Journal like, “It doesn’t have to top 30, but it does have to spike,” it’s no wonder people are insisting on some impressive upward protrusion on their VIX charts.  Some of the VIX coverage these days is so dumbed down, it might as well be done on a flannel board.
  2. Probability: a VIX spike is suggestive of a short-term market bottom, and such a bottom may be less likely without a corresponding panic. In his Barron’s column this weekend, Larry McMillan only just barely put himself in this camp (rather than in the Necessity camp).  He spends most of the column trying to debunk all the reasons others have given for why we could see widespread panic but not see that panic reflected in the VIX.  His conclusion is that, no matter what else happens, people will eventually freak out and buy SPX puts: “This market decline probably will end as all others have — with traders panicking and the VIX spiking upward.”  Plenty of other credible sources (Brett Steenbarger, for example) seem to have roughly the same view: maybe we can move higher without some dramatic VIX-y capitulation, but it sure doesn’t seem likely.
  3. Possibility: a VIX spike is suggestive of a short-term market bottom, but there’s no reason to lean so heavily on this one metric.  This isn’t nearly as sexy a view, and advocating a wider, more cautious, and more nuanced approach to causal claims obviously isn’t going to get you on television.  But the VIX wasn’t actually created to provide swing traders with buy signals, believe it or not.  Jason Goepfert of SentimenTrader mentions in a note this morning that neither put volume nor implied volatility spikes are required for markets to bottom.  Adam Warner has been making the VIX-agnostic case in several recent posts.  Dr. Duru concludes that while a VIX spike may be sufficient condition for a market bottom (no one is going to disagree with that), “it is not a necessary condition.”  Last, and certainly not least, see Bill Luby’s discussion on why a market bottom without a VIX spike is entirely possible, reasonable, and historically supported.

We would fall squarely in the third group, for several reasons.  Despite McMillan’s reservations, the trend is squarely in favor of traders using hedging products in addition to (or even instead of) SPX puts, which would loosen the oft-touted correlation between the VIX and investor fear.  Second, remember that a key component of VIX spikes has been sudden and surprising broad market selloffs; but it’s just not possible to characterize this bear market as a surprise, and we wonder whether any bad news (short of Israel invading one of its neighbors, perhaps) would come as a genuine surprise in this climate.  Finally, there are always reasons that markets can rise without first undergoing some cathartic panic; right now, equities seem to have been depressed somewhat artificially by an overextended rally in commodities, such that any retreat in crude oil prices can easily spark a market rally.

The bottom line is that the VIX is just one of many valuable sentiment indicators, and traders shouldn’t focus unduly on any one tool.

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