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The VIXs of Christmas Past

Wednesday, December 21st, 2011

One of the persistent characteristics of the CBOE‘s VIX index is the Christmas Effect—the tendency for VIX to drop down to relatively low levels during the Christmas holidays.  The CBOE’s VIX volatility futures predict this drop for months in advance, and it has come to pass again this year.   I am aware of at least three possible explanations for this:

  1. Option market makers and others short options reduce their prices before the holidays so that they don’t get stuck with time decay (theta) during the multiple days off
  2. Traders in general go on vacation the end of December, volume drops, and the market becomes lethargic, reducing volatility
  3. People expect volatility to decrease, trade accordingly, and it becomes a self fulfilling prophecy

I am skeptical about calendar based trading strategies (e.g., The S&P was up 8.5% this October), but this effect has been persistent, perhaps because it is not as easy to profit from it.   The VIX index itself is not investable, and not many people are comfortable investing in VIX futures.

I was curious  how the VIX behaved over the last few years in December and January, so I generated the chart below using VIX historical data from the CBOE.

Nov / Dec VIX

To make the chart more readable I did a linear interpolation over weekends / holidays and used a 3 day moving average.  Although 2008 shows the Christmas effect, the market that year was clearly in an unusual state, so I have excluded it from the follow-on charts.  This next chart zooms in on the more normal years.

Dec / Jan VIX history--excluding 2008

There does seem to be a fairly consistent low around the 23rd of December, but what jumps out is the big uptick in volatility in the second half of January.  Only 2006 seems to have skipped this.  As I mentioned before, the VIX index is not directly investible—but the CBOE’s VIX futures are. I used my VIX futures master spreadsheet (http://tinyurl.com/8xwypqc) to generate the chart below showing the behavior of the front month VIX futures, the next ones to expire.

Dec / Jan VIX futures, excluding 2008

With the VIX futures the December dip comes a few days earlier, but the January upswing starts at about the same time.

In my experience the future is often uncooperative in repeating the past, but this VIX Yet to Come, looks like a reasonable bet.

Volatility contango—from the beginning

Monday, November 7th, 2011

Bill Luby, of VIX and more, recently pointed out that the 1st / 2nd month volatility futures had recently set a record (now 70 days) for continuous time spent in backwardation—where the value of the 1st month is higher than the 2nd month.   Not just a trivia question, this condition has been feathering the pockets of those holding volatility ETNs like VXX / TVIX, and picking the pockets of  those holding inverse volatility ETNs like XIV and SVXY.   Is this backwardation record a harbinger of structural changes in volatility futures, or is it just the normal response to a market correction?

Just visualizing the history of contango, starting when volatility futures started trading in March of 2004  is not an easy task.  It has two dimensions of time: the term structure of the volatility futures on a given date, and the variation of that term structure over time.  Obtaining the raw data itself is not trivial.  The CBOE provides volatilty futures data back to March 2004 on their web site, but it is in the form of 95 (!) different spreadsheets, and it is incomplete because not all months traded for the first several years.  To get a full data set back to 2004 required a considerable amount of interpolation / extrapolation.  If you are interested in obtaining the spreadsheet that consolidates all this data see this post.

The graphs below focus on the front two months of volatility futures.  The first covers from 2004 to the present.  I have quantified the contango as the percentage difference between the 1st and 2nd month, with the 1st month being the reference.  Negative values indicate a contango state, positive indicates backwardation.

VIX and 1-2 month volatility futures compared, with contango, click to enlarge

A couple things jumped out at me when I saw this graph. First of all, at a 10,000 meter level, first month volatilty futures do a good job of tracking the VIX index.  Certainly they don’t track well during the most volatile periods of VIX, but during the quiet times they are within a few points.  Second, the other than few days in Dec 2008/Jan 2009 the 1st and 2nd month futures were in contango for a long time (128 days) during the 2008/2009 bear market.   Not surprisingly, the graph shows that most of the time, volatility futures are in contango

This next graph zooms in on our current situation, starting in July 2011.

Fall 2011 Contango, click to enlarge

In the Fall 2011 correction the futures lagged the VIX, but more recently have caught up.  The  2nd month futures usually lag both the 1st month futures and VIX.

At least for 1st and 2nd month futures the term structure seems to be behaving like it did in the past.     Next I’ll look at the medium term ( 4 to 7 month) futures to see how they have behaved.

Is XIV behaving correctly?

Monday, August 15th, 2011

In spite of its name, XIV is not the inverse of the VIX index—it is the daily percentage inverse of a index called SPVXSP, which you can monitor on Bloomberg here.  This index very closely tracks the same index that VXX uses, SPVXSTR.

Last week XIV did not track VXX’s daily moves particularly well.   There has been a lot of speculation about what was causing this disruption—ranging from turmoil in the futures markets, XIV’s daily re-balancing, to the heavy backwardation in the soon-to-expire August volatility futures.

Below I have ploted VXX and XIV against the values they should have based on the index:

VXX & XIV vs SPVXSTR, click to enlarge

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Things do not look seriously out of wack.  Most importantly, we aren’t seeing a divergence between the index and the VXX/XIV prices.  Daily errors are being compensated for over time. The next graph shows the daily VXX/XIV divergence from the index in percent.   The interesting thing here is that VXX is having trouble tracking too—it’s just in the positive direction.

VXX and XIV tracking error, click to enlarge.

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Looking at these graphs I’m inclined to say that the tracking problems are not specific to XIV, but rather due to the volatility/disruption of the futures market associated with the S&P downgrade.

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Buy on rumor, sell on news

Monday, August 1st, 2011

I was very surprised Monday morning when sentiment turned around and the market went into decline.

Perhaps people were nervous that the House wouldn’t approve the budget proposal, but it seems more likely mixed economic news prevented any sort of euphoric  reaction, or people realized that an agreement to add another trillion or two of debt really isn’t cause for celebration.

I held onto my $24 September VXX puts, but I sold out the XIV positions that I bought in the low 15s on Friday.   I would have done better to sell at opening, but I still made a good profit.

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Has most of the drama played out?

Thursday, July 28th, 2011

With Greece’s Euro problems successfully extended out a few more months, and the economy continuing to consistently send mixed messages, the focus of fear is the budget cap.  I’m thinking neither party has the stomach for the wholesale disruption of the Treasury’s affairs.   I wouldn’t be surprised to see one more major upswing in the VIX, but right now the prospect of a happy ending plus a favorable signal from Mr Bollinger, has me back in the market with VXX $24 September puts again (at $3.10).

VIX at 2 sigma Bollinger, click to enlarge

A brief history of fear

Monday, July 25th, 2011

One of the scariest things about market panics is their unpredictability.  All of us remember the dark days of 2008 and 2009, not so many the October 1987 crash.   For me, both of those crashes carried the same sense of disruption—the feeling that things would never be quite the same again.

I’ve been looking at the history of volatility, because it’s clear to me that volatility spikes are a big danger in the inverse volatility investing that I’m been doing.   Shorting VXX, or being long XIV is great while we are in a bull market, but things can get very ugly in a hurry.   The chart below shows a history of volatility, starting in January 1986.  Neither the VIX, or its predecessor VXO existed at that point,  the original index started in 1993, but the CBOE has projected the old style VXO index back to that year.

Volatility 1986 through 2011, click to enlarge

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I’ve never looked closely at the original VIX index, which is now called the VXO.   The VIX methodology we now use was put in place in 2003.   The chart below shows the two indexes during a fear spike in the fall of 1998.   The two track each other closely enough that for normal and semi-normal situations they look comparable.

VXO vs VIX August 1998, click to enlarge

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Below, I have zoomed in on the October 1987 and the November 2008 fear spikes.

October 1987 volatility spike, click to enlarge

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Fear in November 2008, click to enlarge

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Looking at these two monumental spikes, there doesn’t seem to be anything unusual about the run-up.  Nothing in the data suggests that a massive spike in volatility is on the way.

For more information, and access to the the raw data that I used see the CBOE’s microsite on VIX.

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Fear set to fade?

Monday, July 18th, 2011

I  keep an eye on the 6 month chart of  VIX index’s relation to its Bollinger bands when I’m thinking of making a volatility trade—even when the trade I’m contemplating is a non-VIX related security (e.g., VXX, or XIV).   Of course there is nothing iron-clad about it, but as an objective measure I consider VIX touching/near touching  its 2 sigma lines to be an indication that the current phase of the market is ending.

6 month VIX chart with Bollinger bands, click to enlarge

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I bought $24 strike September VXX puts today at 2.83.   With VXX you tend to not get as much mean reversion as $VIX, but the puts benefit from the typical contango that VXX suffers from.

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Backtesting VelocityShares’ ZIV inverse volatility ETN to 2005

Thursday, June 30th, 2011

All of the volatility based ETN/ETF products are new.  Barclays’ VXX and VXZ oldsters started less than 2 1/2 years old—just a few months before the end of the 2008/2009 crash.  This lack of historical data over full market cycles makes it hard to assess the risks associated with new products—such as VelocityShares’ ZIV (medium term inverse volatility) and XIV (short term inverse volatility) funds which are only 6 months old.

I have backtested ZIV starting from December 2005 (I ignored fees and treasury bill interest).  The results for this presumably tamer inverse volatility ETN, are shown below.  For a XIV backtest to 2006 see this post from Volatility Futures and Options.


Backtrack ZIV vs VIX, click to enlarge

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I was surprised at how volatile, and how low this hypothetical ZIV went during the recent bear market—losing 80% of its value from 2007  to 2008.   ZIV and XIV appear to be bull market only instruments and your investments in them should have bear market insurance (e.g., VIX or VXX calls, or OTM SPY/SPX puts) —unless you think you can predict the end of this bull market.

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Whopper splits coming up for VelocityShares’ XIV and ZIV

Tuesday, June 21st, 2011

Evidently the folks at VelocityShares decided that the shares of their inverse volatility offerings were way too pricey, because they are splitting their short term fund, XIV ten to one, and their medium term fund, ZIV by eight to one.  Based on today’s closing prices of 167 for XIV and 132 for ZIV, they will both end up priced at around $16.50 after end of trading this Friday, June 24th, when the splits become effective.

This move strikes me as a strategy shift to broaden the appeal of the funds.  They were introduced last November at around $100/share—not exactly cheap.

As long as an equity stays above $10/share I don’t much care what the price is.  I’m looking for percentage moves.  I question whether splits like this make much difference in the market.  It will be interesting to monitor the volumes, spreads, etc., to see what the effects are.

For more information about these splits, see this news release.

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A big bet on XIV

Thursday, June 16th, 2011

It looks like someone big thinks the market is going to have a upswing today—buying 100,000 shares of  XIV in pre-market at 159.85 ($15.985 million).  It could have been a sale, but I doubt it.

The exchanges show XIV trading  over a million shares before market open today, but I’m assuming that’s an error because the only big trade that shows up is the 100,000 share block.    If the volume number is correct it would be XIV’s first day with over a million shares traded. Reaching the 1 million share mark for the first time in pre-market would probably be unprecedented in the relatively short history of ETF/ETN type equities.

In other volatility related events,  the June VIX options expired yesterday, with a settlement price (VRO) of 19.73 and the VIX index opening at 19.31.   July VIX options won’t expire until July 20th—it is one of those times when they expire later in the month than the equity options.   For tickers on VRO, VIX, and other  related volatility related products see volatility tickers.

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