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© Oaktree Capital Management, L.P.
All Rights ReservedMemo to: Oaktree Clients
From: Howard Marks Re: Pigweed
At Citibank back in the â70s, Chief Investment Officer Peter Vermilye placed a lot of emphasis
on building team spirit. His tools included sk its at our annual staff outings, and he never
hesitated to participate in costume. My favor ite was his portrayal of Johnny Carsonâs savant,
âCarnac the Magnificent.â He would hold a seal ed envelope to his forehead and intone
âSchlum-bair-zhjay,â as the French pronounce th e oil service companyâs name. Upon opening
the envelope, he would read, âWha t they call it at $75.â Holding up the next envelope, heâd say
âSlum-burger.â The explanation in side: âWhat they call it at $15.â
In other words, investors love things as long as theyâre riding high but lose all respect when
theyâre brought low. It doesnât take long to become discredited in the investment world. And so
it is for Amaranth Advisors, which now might be relabeled âpigweedâ â another word for the
plant that gave the fund its name. For those whoâve been incommunicado over the last few months, Amaranth is a hedge fund that
was formed in 2000. In the beginning it stressed relatively safe strate gies like convertible
arbitrage. But more recently it ventured in to other things and in 2004 hired a young man named
Brian Hunter to engage in energy trading, lead ing to the recent events. On September 18, it
announced that it had lost 40% of its $9.5 billi on of total capital on na tural gas trading, a
percentage that was revised upward to 65% over th e next few days. The fund sold off its energy
trading book, Brian Hunter depa rted, and Amaranth threw in the towel and is liquidating.
Now that Amaranthâs collapse has earned it a place on the list of investment disasters, we should consider the lessons that can be le arned from it. Iâll try to provide some useful insights regarding
Amaranth, as usual without claiming to be an expert on the subject.
UYou Bet!
As I read about Amaranth, one thing stood out: the repeated use of the words âtradeâ and, especially, âbet.â Nothing about âinvestâ or âown.â And certainly no reference to âvalue.â The
pattern really is striking. Of course, part of this change in attitude could be attributable to the de frocking described above.
Six months ago, the articles might have described Amaranth as an astute energy investor, rather
than the reckless gambler itâs considered today. But certainly the new nomenclature is everywhere, and I find it appropriate. Whatâs the distinction? Investors want to ow n things for the long run, under the belief theyâll
grow and strengthen over time (or that todayâs va lues will come to be better appreciated).
© Oaktree Capital Management, L.P.
All Rights ReservedTraders buy and sell, usually in short order, to take advantage of mom
entary phenomena. I
usually think of them as betti ng on the direction of the next pr ice move. Certainly we can say
their timeframe is hours or days, or maybe w eeks, but rarely months and never years.
And what is a âbetâ? Thatâs one of those word s we all know the meaning of but would be hard-
pressed to define without using the synonym âwagerâ or the word âbetâ itself. I consulted The
Random House Dictionary of the English Language and found a very useful definition: a bet is
âa pledge of a forfeit risked on some uncertain outcome.â In other words, you attempt to profit from an uncertain event, and if it doesnât go as you hope, you forf eit something of value. Well
then, Amaranth certainly was a bettor. One question: If itâs so obvious today that Am aranth was âbetting,â were people equally aware
of that fact a few months ago? I donât think so. Gains are often presumed to be the result of
carefully considered investments, while itâs us ually losing ventures that are described as
having been bets.
UWhat Was Their Game?
Amaranthâs energy trading operation was in bus iness to bet (there I go!) on short-term
movements in energy prices. But it didnât base its activities on saying âw e want to own natural
gasâ or âwe want to be s hort.â That would be risky.
Instead, it said things like this: âThe price of natura l gas is always higher in the winter than in the
summer, as is proper, because cold weather caus es the demand for gas to increase. But right
now, we think the price discrepanc y is wider than it should be: Janua ry gas is too high relative to
July gas. So weâll short January gas and buy an equal amount of July gas.â Under this approach,
thereâs no net exposure to the overall direction of gas prices, just a bet (if you will) on the
wideness of the spread. The fund wo nât gain if the price of gas rises or lose if it falls. Instead,
itâll gain if the spread narrows in a reversion to the mean, or itâll lose if the spread anomalously widens further. This is a true hedged position: an arbitrage. I define arbitrage as taking largely offsetting
positions in the same or closely related assets exhibiting a price discrepancy, with the goal
of profiting, with very little ri sk, when the mispricing corrects . Its aim is to profit from the
movement of asset prices relativ e to each other (the relationship between which usually can be
counted on to stay within a normal range), not fro m the movement of the price of a single asset
(which can behave any way at all in the short run). This is a very valid approach for a hedge
fund to take. It epitomizes hedging, something th at most hedge funds now seem to engage in
infrequently or not at all. So where did Amaranthâs risk â and the possibility of catastrophic loss â co me in? The answerâs
simple: Positions that are low in risk can be rend ered quite risky with the help of leverage.
Back in ancient history (1998), a fixed in come hedge fund called Long-Term Capital
Management pursued arbitrage transactions like Amaranthâs (on a much more diversified basis
but with more leverage) and experienced a similar meltdown. I noted that earlier, when things
© Oaktree Capital Management, L.P.
All Rights Reservedwere going well, one of Long-Te rmâs principals had said, âWeâre going around the world
scooping up nickels and
dimes.â Thereâs great appeal to his notion of profiting from a large
number of small mispricings that others arenât smart enough to seize upon. But he had left off a
few key words from the end of his sentence: â. . . in front of a steamroller.â The steamroller
enters the picture when so much leverage is employed that a fund canât survive a moment of
aberrant market behavior.
TIn a memo on hedge funds in October 2004, I menti oned that when thereâs a big increase in the
number of little fish attempting to live off each big fishâs leavings (or in the number of hedge funds relative to mainstream investors), the pickings become slimmer. Given the increased
efforts to exploit inefficiencies today and the fact that str ong cash inflows and resultant high
prices have depressed prospective returns in many markets, managers are often resorting to
increased leverage in order to reach their return targets. But itâs essential to remember that
leverage is the ultimate two-edged sword: it doesnât alter the probability of being right or
wrong; it just magnifies the consequences of both.
TUThe Perils of Diversification
TThe Amaranth saga demonstrates that the riskines s of a portfolio is not just a function of the
fundamental nature of its holdings, but also of th ings like concentration a nd leverage. I often say
there is no investment so good that it canât be ruined by too-high an entry price. Thereâs also no
investment so safe that canât be rendered risky by buying too much of it with borrowed
money .
TDiversification has long been considered a pillar of conservati ve investing. Itâs a simple
concept: âDonât put all your eggs in one basket .â Spreading your capital among a number of
assets or strategies reduces the likelihood of a disaster.
TIn the 1960s, Bill Sharpe pointed out that adding in a risky but uncorrelated asset can reduce a
portfolioâs overall riskiness. It has become accepted wisdom that overall risk can be reduced
(and return increased) by adding alternative investments to a por tfolio of stocks and bonds.
TBut people donât always take note of a dangerous outgrowth of these dicta: that diversifying
into uncorrelated assets with borrowed money can increase, not reduce, the risk of the
portfolio.
TLetâs say you have $100 invested in U.S. stocks . You realize how undiversified your portfolio
is, and that a market crash can bring a substantial loss. So yo u sell off $75 worth of stocks and
put $25 each into emerging market stocks, high yield bonds and natural gas futures. Now your
portfolio is invested equally in four asset cl asses rather than one a nd thus probably safer.
TBut what if, instead, you hold onto your $100 wo rth of U.S. stocks and borrow another $300,
investing $100 in each of those three new asset classes. Youâre again invested equally in four asset classes. Equally diversified but much less safe . Thatâs because leverage has magnified
the sensitivity of your portfolio to market movements.
© Oaktree Capital Management, L.P.
All Rights ReservedTA crash that wipes out one of the four asset classes in the diversified $100 portfolio will reduce
your net worth by 25%. But that same crash, wh en experienced in the leveraged and equally
diversified $400 portfolio, will eliminate your entire net worth. So investors should always
consider the combined effect of diversification and leverage. Amaranth was much safer when it
was all in convertible arbitrage than after it increased its leverage in order to diversify into
energy trading. Diversification is a good thing, but a lot depends on how you finance it.
TâMulti-strategyâ is one of todayâs hot buzz words. But as Orin Kramer puts it (see page 12 for
who he is), âAmaranth is a reminder that a multi-strategy structure is not a proxy for risk
diversification.â That is, I th ink, multi-strategy + risk control = protective diversification, while
multi-strategy + leverage = more ways to lose.
UGenerating Alpha
I want to say up front that I have absolutely no idea how one dependabl y achieves above average
profits from trading or investing in commodities, pr ecious metals or currencies. Thatâs not to say
it canât be done. There are pe ople whoâve gotten very rich that way, managing both their own
money and that of others. Of course, the efficient market crowd would say someone will get rich doing everything â even playing the lottery or flipping coins â simply because the tails of a probability distribution
usually arenât en tirely unpopulated. But who it is that gets rich that way may be purely
random. If thatâs the case, the mere existence of a few winners doesnât in itself prove that
something is an âalphaâ activity in which ha rd work and skill will produce consistent
performance, or that large numbers of people can pull it off.
I believe firmly that the markets for commodities and currencies are generally efficient. That means a lot of highly motivated people participate; many are intelligent and computer-literate; they all have access to similar in formation; and theyâre willing to take either side of most
propositions. These people cause all of the availa ble information to instantly be incorporated in
the market price of each asset, such that the mark et price always reflects the consensus view of
the significance of the available information. As a further consequence, few people if any can
dependably identify and profit from instances when the market price is wrong. That, in turn,
makes it difficult to consistently achieve hi gh absolute returns or perform better than
others. That difficulty constitutes the ultimate proof that a marketâs efficient.
Take currencies for example. Exchange rates exist so that currencies will be valued fairly
relative to each other in view of countriesâ differing growth rates, interest rates, inflation
prospects and fiscal and trade de ficits, etc. Further, exchange rates change as the outlook for
these things changes. Their cu rrent status is widely known, and predicting changes is something
few people can do right more often than others. Thus it seems unlikely that some people will be
able to regularly generate higher returns than others.
If itâs so hard to value currencies, commodities and precious metals, why do I think we can invest intelligently in equities, corporate debt and whole companies? Itâs because these things
generate income, and an expected stream of future income can be translated into a current value.
© Oaktree Capital Management, L.P.
All Rights ReservedBut how do you determine the intrinsi c value of a Euro, a bar of gold or a barrel of oil? You can
talk about the positives and th e negatives associated with th
ese goods. But how do you convert
those things into a price?
For example, the factors that argue for high oil prices are obvious. âThe supply is finite.â
âWeâre using it up at an accelerating rate.â âEnvi ronmental issues in the U.S. will constrain the
domestic supply.â âMuch of the foreign suppl y is in the hands of hostile or unpredictable
governments: Iranâs a worry, Venezuela is turning anti-American, and Saudi Arabia is subject to
instability.â Sure they make oil a valuab le good, but how valuable? How do we know the
current price doesnât adequately reflect these things already? Whatâs the
Uright U price for it?
We had a particularly instructive lesson in Ju ly. The price of oil had been strong, and the
outlook was for more of the same . With the price at $77 per ba rrel, it was reported that the
Alaskan pipeline had to be shut down to repair damage. With domestic shipments restricted, the
price had to rise; oil
Uhad U to be a buy. But the $77 price at which oil traded on the day of the
announcement hasnât been seen since. Within just four months, the price of oil fell to $55 (down
28%) â and the factors listed above were just as true at $55 as they were at $77. Without the
ability to reliably convert funda mentals into prices, I donât see how one can achieve consistently
superior risk-adjusted gains.
Above average investment performance (in an y market) has to be the result of either
unusual insight into values or the intersection of risk taking and luck. Itâs hard to tell the
difference between the two in the short run, but the truth always becomes clear in time,
because luck rarely holds up for long .
UThe Short-Term Performance Trap
That leads me to Amaranthâs experience in natura l gas, and to the key lesson to be learned from
it. Is anyone capable of regularly generating sk illed-based (as opposed to luck-based) returns at
an ultra-high level by trading natural gas? I donât know for sure, but I would think not.
Iâm not saying no money can be made that way. But while the capital markets might permit one to steadily earn 5-8% a year (or maybe even 8-10%) by committing capital to this activity,
returns in the teens shou ld be infrequent, and returns above 20% probably should be
considered the result of extreme good fortune (and thus as having been just as likely to go
the other way). There are exceptions, but a good statis tician can live with a few exceptions
without feeling they disprove the main point.
I think itâs essential to realiz e that Amaranthâs troubles in natural gas didnât start this
year, with the positions that didnât work. They started with the $1 billion in profits that
Hunter generated in 2005, which permitted Amar anth to report a return roughly double
that of the average hedge fund.
TIn the investment business, clients love high retu rns and hate low returns. That makes sense.
And when the marketâs up 10% and their manager is up 20%, clients are real ly happy. But thatâs
my pet peeve. Rarely does anyone say, âWhoa. That returnâs too high. How did it happen?
© Oaktree Capital Management, L.P.
All Rights ReservedHow much ri
sk did my manager take in order to generate that?â No, in the investment world
few people find high returns worrisome.
TEveryone talks about beta, (which Iâm tempted to pronounce âbee-tahâ now that Iâve spent six
weeks in London), but few people dwell on it when returns are soaring. Credulous investors
think the manager who generated 20% in an up- 10% market contributed alpha of 10%. But
maybe he had zero alpha and a beta of 2 instead . . . or maybe negative alpha of 20% and a beta
of 4. Regardless, I almost never h ear people talk about returns being so high that theyâre suspect.
According to Hillary Till of Pr emia Capital Management (in her report on Amaranth published
by Franceâs EDHEC Business Sc hool), âSince May, investor s knew [Amaranthâs] energy
portfolio had typical up or down mo nths of about 11%. . . . Ther efore, it would not have been
unusual for the fundâs energy trades to lose 24% in a single month. . . .â But nobody seemed to
care, since the energy book gained $2 billion in just the first four months of 2006. In other
words, Amaranth had enjoyed the up months. That certainly didnât im ply that down months
werenât lurking. In f act, just the opposite.
THereâs the most important thing: My wife Nancy often quotes a few lines from Rudyard
Kiplingâs poem, âIfâ:
TIf you can meet with Triumph and Disaster
TAnd treat those two Impostor s just the same; . . .
TYours is the Earth and everything that's in it,
TAnd â which is more â youâll be a Man, my son!
TLikewise, short-term gains and short-term losses are potential impostors, as neither is
necessarily indicative of real invest ment ability (or the lack thereof).
TSurprisingly good returns are often just the flip side of surprisingly bad retu rns. One year with a
great return can overstate the managerâs skill and obscure the risk he took. Yet people are
surprised when that great year is followed by a terrible year. Investors in variably lose track of
the fact that they both can be impostors, and of the importance of digging deep to understand
what underlies them.
TOne gets the impression that no one at Am aranth asked the right question when Brian
Hunter shot the lights out in 2005: âHowâd you do that?â Or if they asked, they were
satisfied with what turned out to be the wrong answer: skill, rather than leveraged aggression
combined with luck. They let him move to Calgary, and they gave him a large enough capital and/or risk budget to enable him to bring down the firm.
TBut The Wall Street Journal of Sept ember 19 laid out how this came about. â. . . late last year,
the double-whammy of Hurricanes Katrina and Rita made Mr. Hunter a hero at Amaranth and a
minor legend on Wall Street, as he made $1 billio n for Amaranth.â Hunter liked to buy deep-
out-of-the-money options. While these things ex pire worthless most of the time, a major,
unexpected price move in the underl ying asset can produce huge profits.
© Oaktree Capital Management, L.P.
All Rights ReservedTBut does betting on a long shot and prof iting from a freak o ccurrence make someone a
skilled investor, or just the âl ucky idiotâ that Nassim Nichol as Taleb describes in âFooled
by Randomnessâ? Should that kind of performance insp ire reverence or concern? Well,
Amaranthâs 2005 gas profits produced awe, but anyone looking behind them should have been
worried. What would have happened, investors might have asked, if events had unfolded
differently? Talebâs âalternative historiesâ are always worthy of consideration (see below).
TThe events in the gas market that decimated Am aranth in 2006 may have been unforeseeable and
unprecedented. But those adjectives might apply just as well to the elements that made it
successful in 2005, and no one â especially not th e fundâs managers â seems to have mentioned
that fact at the time. When pe ople profit from such things, itâs considered all right and good, but
then when they reverse into losses, it comes as a shock. Theyâre two sides of the same coin,
but investors have a really tough time keeping that in mind.
UWhatâs Real?
To be able to attach the proper significance to short-run performance, itâs essential that one
understand the idea of âalte rnative histories.â I came across it in Talebâs book, which I consider
the bible on such topics. This concept is related to Orin Kramerâs description of
Tpast performance as âthe interaction of
particular historical and market conditions and the judgments and beliefs of managers during that
period.â In other words, investment performance is what happens to a portfolio when
events unfold. People pay great heed to the resulting perf ormance, but the questions they should
ask are, âWere the events that unfolded (and th e other possibilities that didnât unfold) truly
within the ken of the portfolio manager? And what would the performance have been if other
events had occurred instead?â Those other events are Talebâs âalternative histories.â How
about an example of the right way to view outcomes? TWell, with the college football bowl
season upon us, Iâd like to discuss last yearâs championship game, something Iâve been musing
about for almost a year. The University of Southern California football team was undefeated in the 2005 regular season.
It boasted two successive yearsâ Heisman Trophy wi nners and many other grea t players. It won
its games in spectacular fashion and was widely touted as one of the best college football teams
of all time. In fact, in the week leading up to the championship game against the University of Texas, ESPN ran daily segments that compared USC against a top team from the past, each time
stating that USC was better, and why. When it came down to game time, however, Texas played very well and USC couldnât contain their talented quarterback, Vin ce Young. With two minutes to go in the game, holding a slim
five-point lead, USCâs coach, Pete Carroll, chose to âgo for itâ on fourth down, rather than punt
the ball downfield â undoubtedly out of concern th at if Texas got the ball with two minutes left
on the clock, his team would be unable to keep them from scoring. USC failed to make a first
down, and Texas got the ball with good field pos ition, scored a touchdown and won the game.
© Oaktree Capital Management, L.P.
All Rights ReservedIf USC had made the two yards they needed on that
fourth down play, itâs extremely likely they
would have won the game. And if theyâd w on the game, they doubtless would be described
today as the best college football team in history. But it didnât happen that way, and no one talks
anymore about their being the best, or even the s econd best. Now theyâre considered just another
great team. What this shows is how tenuous the connection can be between outcomes
(which most people take for reality ) and the real, underlying reality. What do I mean by that
distinction?
Consider this: Whatâs the probability that if USC had made the needed two yards â and today
was considered the best team ever â they really would be the best team ever? Certainly not
100%. And just as interestingly (or to me maybe more so), what âs the probability that, even
though they didnât make the two yards, they actually are the best team that ever played?
Certainly not zero. But since USC lost that game, most people would find nonsensical a suggestion that theyâre the best t eam in history. To contemplate th at possibility, they would have
to consider an alternative history in which USC made those two yards. Can the result of one play really decide the issue? Thatâs the one thing we all can probably agree
shouldnât be the case. âEveryone knowsâ that the score of a game doesnât necessarily tell you which is the better team. So then outcomes arenât necessarily indicative of reality, meaning that alternative histories should be given significant weight. (I guess the ultimate step would be to
suggest that USC actually won the game, the scor e notwithstanding. That would be going too far
. . . although we often hear a losing teamâs fans say, âWe won that game.â)
While weâre looking deeply into things, letâs spe nd a minute on Pete Carrollâs decision to go for
it on fourth down. Was he right or wrong? He has gone for it on fourth down many times in his
coaching career, and most of the time it worke d. In fact, USC twice had run on fourth down
earlier in the championship game, making the needed yardage once and scoring a touchdown.
But on that final attempt they were unsuccessful. Does that mean Pete made a wrong decision?
Or was it a right decision that ju st happened not to work on that o ccasion? One of the first things
I learned at Whart on in 1963 was that you canât judge the correctness of a decision from the
outcome. This is another concept that many peopl e find nonsensical. But good decisions fail to
work all the time â just as bad ones lead to succe ss â simply because itâs so hard to predict which
history will materialize.
It seems ridiculous for something as momentous as the label âbest team everâ â and the
measure of a teamâs real wort h over an entire season â to hi nge on the outcome of one play
that took four seconds. Clearly thatâs a dist ortion, but no less of a distortion than many
peopleâs response to short-term inves tment performance, both good and bad.
UKing for a Day
TIn the current environment, there can be little ability to restrain a hot manager. According to
Amaranthâs head of Human Resources until 2004, the CEO of the fund â. . . sought to centralize oversight of traders and keep bi g discretionary trading authority on the fundâs Greenwich trading
floor. After big gains in 2005, Mr . Hunter was allowed to trade from Calgary. âTo have a
© Oaktree Capital Management, L.P.
All Rights Reservedrelative newcom
er . . . receive so much discretion is just shocking to me.â â (The Wall Street
Journal, September 20)
TBut today, if a hedge fund CEO tells a trader wh oâs been generating great performance that he
canât have more capital, or take risky positio ns, or pursue the maximum imaginable incentive
fee, or move to Calgary, heâll lose him. Th ereâs always another employer whoâll meet a hot
traderâs demands. No, this isnât a time when discipline and risk control come easy.
TIn this climate, even an earlier dust-up at De utsche Bank regarding Bria n Hunterâs gas trading
and bonus wasnât enough to keep him from becoming the linchpin of a $9.5 billion fund, managing half its capital. And it wouldnât have deterred others from hiring him if he quit
because Amaranth had tried to restrain him.
TA decade ago, if an employee whoâd run up big profits in his first year asked for a huge bonus,
weâd say, âCome back after youâve put together a few good years.â But in todayâs climate, if a
hedge fund doesnât come up with an out-sized bonus after one good year, itâs unlikely the
employee will stick around to give it a second. Thus Brian Hunter was paid $75 to $100
million in 2005, his first full year at Amaranth , arguably for betting right on the weather.
TIt doesnât take much to be venerated today. One or two good year s make somebody a âtop
trader.â Three years can enable someone to rais e a billion-dollar hedge f und. In fact, even after
the fall, The Wall Street Journal described Brian Hunter as an âexperienced managerâ . . . at 32.
Doesnât anyone think that before someone is elevated to the invest ment peerage, he or she should
have a record spanning more than a few years, a nd have been tested in down markets? I knew
the world had been turned on its head when I read on âdailyii.comâ about Hedge Funds
Investment Management, a London fund of funds that will invest only with people whoâve been
in the business for 3œ years or less.
TUUnlikely Things Happen
TThe EDHEC report mentioned above makes a numb er of interesting observations concerning
Amaranthâs portfolio:
TAs of June 2006, energy trades accounted for about half of Amaranthâs capital and generated
75% of its profits.
ï· TAmaranth had 6,700 energy positions, leveraged 4.5 to one, including open positions to buy
or sell tens of billions of dollars of commodities.
ï· TAmaranth was responsible for a substantial portion of all of the gas trades that took place.
ï· TIn the far-out months, in which fewer traders participate, âthe fundâs positions were indeed
massive.â
ï· TMany of Amaranthâs trades probably had âphys ical-market participan tsâ on the other side,
people who had taken positions to hedge risks intr insic to their business. Because they would
be unlikely to unwind their trades at Amaranthâs convenience, ex its were problematic.
ï· TIn view of all of the above, âthe magnit ude of Amaranthâs energy position-taking was
inappropriate relative to its capital base.â
© Oaktree Capital Management, L.P.
All Rights ReservedTHillary Till describes Amaranthâs loss as a 9-st andard-deviation event (Long-Term Capitalâs is
estimated at â8-sigmaâ). By way of referen ce, 5 standard deviations include the central
99.99994% of a Tnormal probability distribution. A 5-sigma event below that range should
happen about three times in every ten million trials (thus a given daily occurrence should happen
once every 10,000 years). But itâs amazing how often this kind of event seems to occur when
derivatives are combined with leverage.
TEveryone speaks about preparing for âworst-caseâ outcomes, but invariably things can get even
worse. Statistical reassurance should be relied on only to a reasonable extent. Common sense
has to come into play as well.
TURisk Management and Risk Managers
TYou know from my memo of February entitled âRiskâ that Iâm not a big fan of quantitative risk
management. Itâs often said of a man that âh e knows the price of ever ything but the value of
nothingâ â and itâs not meant as a compliment. Likewise, I feel effective assessment of portfolio
risk is less likely to come from Ph.D. statisticians who lack intimate knowledge of the assets in the portfolio than through wise judgments made subjectively by investors possessing âalpha.â
TIn the memo on risk, I enumerated several criteria that should be present if modeling is to prove
effective. I also observed that most of them are lacking in the investment world. In an article in
the Financial Times of October 10, John Kay wrote of the risk that arises because of âuncertainty
about whether the model you have developed describes the world accurately.â He concluded that âmathematical modeling of risk can be an aid to sound judgment but never a complete
substitute.â My first boss, George Egbert, Jr., Citib ankâs Director of Research in the 1960s,
used to say of economists, âThey should be on tap but not on top.â Reliance on risk modeling
should be similarly limited.
TâWhat Brian is really good at is ta king controlled and measured risk.â Thus spoke Nick
Maounis, the CEO of Amaranth, less than a month be fore its collapse. He cited the more than a
dozen members of his risk management team who se rved as a check on his star gas trader, and he
said âspreads and options are of their very natu re instruments for positions which are designed to
allow the user to capture upside with a much clearer understanding with respect to downside
exposureâ (The Wall Street Jour nal of September 19 and 20). But in the end, outsized profit
potential without risk turned out to be a pipe dream as usual.
TAmaranthâs systems didnât appear to meas ure correctly how much risk it faced
and what steps would limit losses effectively. The risk models employed by
hedge funds employ historic data, but th e natural gas markets have been more
volatile this year than any year since 2001, making models less useful. They also
might not predict how much selling of oneâs stakes to get out of a position can cause prices to fall.
TâIt was a total failure of risk control to put your entire business at risk and not
seem to know it,â says Marc Freed [of Lyst er Watson & Co., an advisory firm that
10
© Oaktree Capital Management, L.P.
All Rights Reservedinvests in hedge funds]. âThey were more leveraged than they realized.â (The
Wall Street Journal, September 20)
TAfter the fall, the Journal quotes Mr. Maounis as saying Amaranthâs traders âwere surprised not
only by adverse market moves that triggered the lo sses but also by the lack of ability to exit the
losing positions.â Thatâs it, right there: the word âsurprise.â Itâs one thing to make an
investment you know is risky and have it come out wrong. Itâs something entirely different to
make an investment that entails risk of which youâre unaware.
TMr. Maounis and Amaranthâs risk managers shoul dnât have been surprised. They should have
been alerted by the volatility of the fundâs energy results. According to Till, its LPs should have
been as well. âInvestors would not have need ed position-level transparency to realize that
Amaranthâs energy trading was quite risky.â But the evidence of that potential risk came
primarily in the form of outsized gains, and these are rarely recognized as the red flag they are.
TAmaranthâs investors relied heavily on its va unted risk management capability and on the
assurance that risk was under control. But the fund failed to survive its seventh year.
Quantitative risk managers can only opine on whether a disaster is likely or not. Even if theyâre
right about that, itâs up to you to decide whether youâre willing to bear the risk of an improbable
disaster. They do happen!
TUClassic Investment Mistakes
THemlines go up and down. Ties go from wide to narrow and back again. There are only so
many ways in which things can vary. Likewise, there are only a few mistakes one can make in investing, and people repeat them over and ove r. It seems Amaranth made several.
TBorrowing short to buy long (and illiquid). This cardinal sin is at the root of most great
investment debacles. A fundâs capital should be as long-lived as its commitments. And no
fund should promise more liquidity than is provided by its underlying assets. You can
successfully invest in volatile a ssets if youâre sure of being able to ride out a storm. But if
you lack that certainty and face the possibility of withdrawal s or margin calls, a little
volatility can mean the end. In the case of Amaranth, just as had been true of Long-Term
Capital Management and the big junk bond holders that were fo rced to sell out at the 1990
lows, many of the losses would have turned back into profits if they had just been able to
hold on through the crisis. Thatâs why I always caution, âNever forget the six-foot-tall man
who drowned crossing the stream that was five feet deep on average.â Itâs not enough to be able to get through on average; you have to be able to survive lifeâs low points.
TConfusing paper profits with real gains. The Wall Street Journal of September 20 points
out that Hunter was encouraged by the posit ive marks to market showing up in his
statements, so much so that he added further to his positions. But he seems not to have asked
whether the gains were real and realizable. Th e Journal also points out that Hunter was such
a big buyer in thin markets that his buying ofte n supported prices and cr eated the very profits
he found so encouraging. But if the prof its were the product of his buying, and thus
11
© Oaktree Capital Management, L.P.
All Rights Reserved 12 dependent on it for their continued existence, he clearly had no way to realize them. My
father used to tell a joke about the guy who insisted that his hamster was worth thousands
more than he had paid for it. âThen you sh ould sell it,â his friend urged. âYeah,â he
responded, âbut to whom?â
ï· Being seduced by loss limitation. Hunter is said to have liked buying deep-out-of-the-
money options, and everyone knows that one great thing about buying options is that in
exchange for a small option premium you receive the right to benefit from price movements
on lots of assets. You can only lose 100% of the amount you put up . . . and in deep-out-of-
the-money options people do just that all the time.
ï· Misjudging liquidity. People often ask me whether a given market is liquid or not. My
answer is usually, âthat depends on which side youâre on.â Markets are usually liquid in one
direction or the other but not necessarily both. When everyone is selling, a buyerâs liquidity
is great, b ut a seller will find the going difficult. When sellersâ urgency increases, theyâre
likely to have to give on price in order to achieve the âimmediacyâ they crave (see my memo
âInvestment Miscellany,â November 16, 2000). If their desire for immediacy is extreme, the
bids they see might be absurdly low. Thus markets canât be counted on to accommodate a
sellerâs need to realize fair value.
ï· Ignoring the impact of others. In small markets, everyone may know about your trades.
That means they can copy them (making buying tough and adding to the crowd that will
eventually jam the exits), and they can deny you fair prices if they know you have to sell.
Aggressive traders, especially at hedge funds, donât wear kid gloves.
ï· Underestimating correlation. Thereâs another old saying: âIn times of crisis, all
correlations go to one.â It means that assets with no fundamental or economic connection
can be caused by market conditions to move in lockstep. If a hedge fund experiences heavy
withdrawals during a period of illiquidity, assets of various types may have to be dumped at
once, and thus they can all decline together. Further, hidden fault lines in portfolios can
produce unexpected co- movement. Letâs say youâre long sugar and gas , two unrelated
commoditi es. Unusually warm weather can reduce the demand for gas for heating and also
cause a record sugar crop (as happened this year). Thus th e prices of seemingly unrelated
goods can decline together. Intelligent d iversification doesnât mean just owning different
things; it means owning things that will respond differently to a given set of
environmental factors. Thus it requires a thorough understanding of potential
connections.
The case of Amaranth is highly and painfully instructive, and it bears out another of my favorite
expressions: Experience is what you got when you didnât get what you wanted.
* * *
Orin Kramer manages the Kramer-Spellman hedge fund and, more famously, chairs the State of
New Jersey Investment Council, which oversees the stateâs $80 billion pension fund. He is
© Oaktree Capital Management, L.P.
All Rights Reservedextremely knowledgeable concerning risk and re turn, herd behavior and the vicissitudes of
investing in an institu tional setting. In a speech a few w eeks ago, he made som
e excellent
points:
TMy own view is that we exaggerate the ut ility of standard performance measures.
In general, past performance reflects the interaction of partic ular historical and
market conditions and the judgments and be liefs of managers during that period.
In particular, managers may consciously or unconsciously pursue strategies which assume the risk of low-frequency, high-severity outcomes. Strategies which can only be torpedoed by low-frequency ev ents will mostly produce favorable
outcomes; identifying the tail risk implicit in such strategies is an extraordinary challenge. The absence of the severe negativ e outcome is not, regrettably,
proof that it cannot occur. (Emphasis added)
TIn other words, (1) short-term investment perfor mance is not a helpful in dicator of ability, (2)
good results can arise just because a manager c hose a high-risk course and was bailed out by
events, and (3) that same course could just as eas ily have led to disaster . . . and certainly could
do so next time. However, itâs rare for either managers or clients to r ecognize the unreliability
implicit in short-term results, especially when theyâre good.
TOrin also notes that Amaranth âoccurred when the skies were blue; the fund unraveled because a
small and volatile commodity behaved in an unpredi cted fashion.â This collapse didnât require
an adverse economic environment or a market cras h. The combination of arrogance, failure to
understand and allow for risk, and a small advers e development can be enough to wreak havoc.
It can happen to anyone who doesnât spend the time and effort required to understand the
processes underlying his portfolio.
December 7, 2006
13
© Oaktree Capital Management, L.P.
All Rights Reserved 14Legal Information and Disclosures
This memorandum expresses the views of the author as of the date indicated and such views are subject to
change without notice. Oaktree has no duty or obligation to update the information contained herein. Further, Oaktree makes no representation, and it should not be assumed, that past investment performance is an indication of future results. More over, wherever there is th e potential for profit there
is also the possibility of loss. This memorandum is being made av ailable for educational purposes only and should not be used for any
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