Category Archives: Finance

Sharpe: The Arithmetic of Active Management

William Sharpe presents a logical argument that passive management is superior than active management. Since the average return of both passive and active investors must equal the market return, and the costs of active management are greater than passive management, he concludes:

Properly measured, the average actively managed dollar must underperform the average passively managed dollar, net of costs. Empirical analyses that appear to refute this principle are guilty of improper measurement.

Read the full article here. It was written in 1991 but is still relevant today.

The Lure Of Active Management

CFA Program Curriculum, Level II, Derivatives and Portfolio Management:

Consider the results of the following two different investment strategies:

  1. An investor who put $1,000 in 30-day commercial paper on January 1, 1927, and rolled over all proceeds into 30-day paper (or into 30-day T-bills after they were introduced) would have ended on December 31, 1978, fifty-two years later, with $3,600.
  2. An investor who put $1,000 in the NYSE index on January 1, 1927, and reinvested all dividends in that portfolio would have ended on December 31, 1978, with $67,500.

Suppose we defined perfect market timing as the ability to tell (with certainty) at the beginning of each month whether the NYSE portfolio will outperform the 30-day paper portfolio. Accordingly, at the beginning of each month, the market timer shifts all funds into either cash equivalents (30-day paper) or equities (the NYSE portfolio), whichever is predicted to do better. Beginning with $1,000 on the same date, how would the perfect timer have ended up 52 years later?

This is how Nobel Laureate Robert Merton began a seminar with finance professors 25 years ago. As he collected responses, the boldest guess was a few million dollars. The correct answer: $5.36 billion.

 

Diversification Is Broken

Two heat maps from a HSBC study on risk-on risk-off (“RORO”). The first heat map shows the correlation of several assets before the financial crisis. The second heat map shows the correlation of the same assets after the financial crisis.

Red indicates a correlation closer to 1.0 and blue indicates a correlation closer to -1.0. Pre-financial crisis, we see what we would expect in a normal functioning market: high levels of correlation among United States equity indices, high levels of correlation among European equity indices, and high levels of correlation among fixed income securities. And we see little correlation between these groups (like equities vs. commodities and equities vs. fixed income). Each asset class has a perfect correlation with itself which explains the diagnol line from the upper left to lower right.

After the financial crisis, we are seeing an explosion of correlation. It seems like everything is moving together. The exception is strong negative correlation among equities and fixed income due to the decline in interest rates.

All of this means that traditional measures of diversification are more difficult to achieve. I personally have played around with TZA, a 3x inverse ETF benchmarked to the Rusell 2000 to achieve some guaranteed level of downside protection. This has worked out well for me so far in reducing the volatility in my portfolio.

Some more discussion at FT Alphaville here.

There Will Always Be Asset Bubbles

Sometimes I feel like I have already missed all the great investment opportunities but careful analysis of history suggests otherwise. Peter Theil, co-founder of Paypal, provides us with a brief history of the 1990s where we witnessed several asset bubbles bursting: the East Asian financial crisis, the Russian ruble crisis, the Long-Term Capital Management crisis, and the eventual tech bubble. Prudent investors can make money during the formation of an asset bubble (by going long) and when the bubble bursts (by going short). Add to this the numerous other asset bubbles we’ve seen since the tech bubble (primarily real-estate related) and it is easy to convince yourself that there should be no shortage of great investment opportunities in the future.

Peter Theil on a brief history of the 1990s:

Most of the 1990s was not the dot com bubble. Really, what might be called the mania started in September 1998 and lasted just 18 months. The rest of the decade was a messier, somewhat chaotic picture.

The 1990s could be said to have started in November of ’89. The Berlin Wall came down. 2 months of pretty big euphoria followed. But it didn’t last long. By early 1990, the U.S. found itself in a recession—the first one in post WWII history that was long and drawn out. Though it wasn’t a terribly deep recession—it technically ended in March of ’91—recovery was relatively slow. Manufacturing never fully rebounded. And even the shift to the service economy was protracted.

So from 1992 through the end of 1994, it still felt like the U.S. was mired in recession. Culturally, Nirvana, grunge, and heroin reflected increasingly acute senses of hopelessness and lack of faith in progress. Worry about NAFTA and U.S. competitiveness vis-à-vis China and Mexico became near ubiquitous. The strong pessimistic undercurrent fueled Ross Perot’s relatively successful third party presidential candidacy. George H.W. Bush became the only 1-term President in the last thirty years. Things didn’t seem to be going right at all.

To be sure, technological development was going on in Silicon Valley. But it wasn’t that prominent. Unlike today, the Stanford campus in the late 1980s felt quite disconnected with whatever tech was happening in the valley. At that time, Japan seemed to be winning the war on the semiconductor. The Internet had yet to take off. Focusing on tech was idiosyncratic. The industry felt small.

The Internet would change all that. Netscape, with its server-client model, is probably the company most responsible for starting the Internet. It was not the first group to think of a 2-way communications network between all computers; that honor goes to Xanadu, who developed that model in 1963. Xanadu’s problem was that you needed everyone to adopt it at once for the network to work. They didn’t, so it didn’t. But it became a strange cult-like entity; despite never making any money, it kept attracting venture funding for something like 29 years, finally dying in 1992 when investors became irreversibly jaded.

So Netscape comes along in ’93 and things start to take off. It was Netscape’s IPO in August of 1995—over halfway through the decade!—that really made the larger public aware of the Internet. It was an unusual IPO because Netscape wasn’t profitable at the time. They priced it at $14/share. Then they doubled it. On the first day of trading the share price doubled again. Within 5 months, Netscape stock was trading at $160/share—completely unprecedented growth for a non-profitable company.

The Netscape arc was reminiscent of Greek tragedy: a visionary founder, great vision, hubris, and an epic fall. An instance of Netscape’s hubris had them traveling to the Redmond campus, triumphantly plastering Netscape posters everywhere. They poked the dragon in the eye; Bill Gates promptly ordered everyone at Microsoft to drop what they were doing and start working on the Internet. IE came out shortly after that and Netscape began rapidly losing market share. Netscape’s saving grace was its legally valuable antitrust claims—probably the only reason that a company that never really made money was able to sell to AOL for over a billion dollars.

The first three years after Netscape’s IPO were relatively quiet; by late 1998, the NASDAQ was at about 1400—just 400 points higher than it was in August ’95. Yahoo went public in ’96 at a $350M valuation, and Amazon followed in ’97 at a $460M valuation. Skepticism abounded. People kept looking at earnings and revenues multiples and saying that these companies couldn’t be that valuable, that they could never succeed.

This pessimism was probably appropriate, but misplaced. Things weren’t going particularly well in the rest of the world. Alan Greenspan delivered his famous irrational exuberance speech was 1996—a full 3 years before the bubble actually hit and things got really crazy. But even if there was irrational exuberance in 1996, the U.S. was hardly in a position to do anything about it. 1997 saw the eruption of the East Asian financial crises in which some combination of crony capitalism and massive debt brought the Thai, Indonesian, South Korean, and Taiwanese (to name just a few) economies to their knees. China managed to avoid the brunt of the damage with tight capital controls. But then in 1998, the Ruble crisis hit Russia. These were unique animals in that usually, either banks go bust or your currency goes worthless. Here, we saw both. So your money was worthless, and the banks had none of it. Zero times zero is zero.

On the heels of the Russian crisis came the Long-Term Capital Management crisis; LCTM traded with enormous leverage (“picking up nickels in front of a bulldozer”), ultimately blew up, and but for a multibillion dollar bailout from the Fed, seemed poised to take down the entire U.S. economy with it. Things in Europe weren’t all that much better. The Euro launched in January 1999, but optimism about it was the exception, strong skepticism the norm. It proceeded to lose value immediately.

One way to think about the tech mania from March 1998 to September 2000, then, comes from this insight that pretty much everything else was going insanely wrong before that time. The technology bubble was an indirect proof; the old economy was proven not to work, as we could no longer compete with Mexico or China. Emerging markets were proven failures, rife with cronyism and mismanagement. Europe offered little hope. And no one wanted to invest with leverage after the LTCM disaster. So, by the late ‘90s, a process of elimination left only one good place to put money: in tech.

Continue reading here.

Warren Buffet’s $50 Billion Decision

Warren Buffet on turning down Benjamin Graham’s offer to replace him:

This was a traumatic decision. Here was my chance to step into the shoes of my hero—I even named my first son Howard Graham Buffett. (Howard was for my father.) But I also wanted to come back to Omaha. I probably went to work for a month thinking every morning that I would tell Mr. Graham I was going to leave. But it was hard to do.

The thing is, when I got out of college, I had $9,800, but by the end of 1955, I was up to $127,000. I thought, I’ll go back to Omaha, take some college classes, and read a lot—I was going to retire! I figured we could live on $12,000 a year, and off my $127,000 asset base, I could easily make that. I told my wife, “Compound interest guarantees I’m going to get rich.”

Continue reading here.

Life After Wall Street

Continuing with my previous post on the negative health effects that a high-stress job can bring, I present to readers an excellent long-form article from The Financial Times containing  a compilation of personal stories from ex-bankers and traders:

For the past generation, Wall Street has been a black hole that sucked in the world’s best and brightest minds, lured by the irresistible prospect of obscene wealth without the risk to any personal capital. But now the first flicker of serious prosecutions against the abominable behaviour that led up to the financial crisis combined with materially smaller bonuses has cast a pall over the attractiveness of a Wall Street career. A former Goldmans banker said that for the first time in decades, a number of recent college graduates have actually turned down offers from the bank, opting instead for the much more altruistic Teach for America.

Continue reading here.

Health of Investment Bankers

During their first two years, the bankers worked on average 80 to 120 hours a week, but remained eager and energetic, she says. They typically arrived at 6 a.m. and left around midnight.

By the fourth year, however, many bankers were a mess, according to the study. Some were sleep-deprived, blaming their bodies for preventing them from finishing their work. Others developed allergies and substance addictions. Still others were diagnosed with long-term health conditions such as Crohn’s disease, psoriasis, rheumatoid arthritis and thyroid disorders.

One mild-mannered banking associate spoke about exploding in rage at a cab driver after unsuccessfully attempting to open a locked door from the outside: “I became so furious that I kept banging against the windows like crazy, swearing at the poor guy. And then I turned around and saw that a managing director was watching with his mouth open. I was so ashamed.”

Meanwhile, company “perks” offered to employees, such as take-out meals and car service, had gradually blurred the lines between work and life.

One vice president described work as a never-ending nightmare, waking up every morning and wishing the day before “was just a bad dream.” Another vice president said he was so worried others might notice his drinking problem that he would “keep losing half of what they are saying.”

By the sixth year, the participants, now in their mid-30s, had split into two camps: the 60% who remained “at war” with their bodies, and the remaining 40% who decided to prioritize their health, meaning they paid more attention to sleep, exercise and diet and set limits on how much they allowed work to consume them.

Continue reading here.

Warren Buffet on Gold

Today the world’s gold stock is about 170,000 metric tons. If all of this gold were melded together, it would form a cube of about 68 feet per side. (Picture it fitting comfortably within a baseball infield.) At $1,750 per ounce — gold’s price as I write this — its value would be about $9.6 trillion. Call this cube pile A.

Let’s now create a pile B costing an equal amount. For that, we could buy all U.S. cropland (400 million acres with output of about $200 billion annually), plus 16 Exxon Mobils (the world’s most profitable company, one earning more than $40 billion annually). After these purchases, we would have about $1 trillion left over for walking-around money (no sense feeling strapped after this buying binge). Can you imagine an investor with $9.6 trillion selecting pile A over pile B?

Beyond the staggering valuation given the existing stock of gold, current prices make today’s annual production of gold command about $160 billion. Buyers — whether jewelry and industrial users, frightened individuals, or speculators — must continually absorb this additional supply to merely maintain an equilibrium at present prices.

A century from now the 400 million acres of farmland will have produced staggering amounts of corn, wheat, cotton, and other crops — and will continue to produce that valuable bounty, whatever the currency may be. Exxon Mobil (XOM) will probably have delivered trillions of dollars in dividends to its owners and will also hold assets worth many more trillions (and, remember, you get 16 Exxons). The 170,000 tons of gold will be unchanged in size and still incapable of producing anything. You can fondle the cube, but it will not respond.

Admittedly, when people a century from now are fearful, it’s likely many will still rush to gold. I’m confident, however, that the $9.6 trillion current valuation of pile A will compound over the century at a rate far inferior to that achieved by pile B.

Continue reading here.

The End Of Wall Street

On Wall Street, the misery index is as high as it’s been since brokers were on window ledges back in 1929. But sentiments like that, accompanied by a full orchestra of the world’s tiniest violins, are only part of the conversation in Wall Street offices and trading desks. Along with the complaint is something that might be called soul-searching—which is, in itself, a surprising development. Since the crash, and especially since the occupation of Zuccotti Park last September (which does appear to have rattled a lot of nerves), there has been a growing recognition on Wall Street that the system that had provided those million-dollar bonuses was built on a highly unstable foundation. Disagreeable as it may be, goes this thinking, bankers have to go back to first principles, assess their value in the economy, and take their part in its rebuilding. No one on Wall Street liked to be scapegoated either by the Obama administration or by the Occupiers. But many acknowledge that the bubble­-bust-bubble seesaw of the past decades isn’t the natural order of capitalism—and that the compensation arrangements just may have been a bit out of whack. “There’s no other industry where you could get paid so much for doing so little,” a former Lehman trader said. Paul Volcker, whose eponymous rule is at the core of the changes, echoes an idea that more bankers than you’d think would agree with. “Finance became a self-justification,” he told me recently. “They made a lot of money trading with each other with doubtful public benefit.”

Excellent long-form article from New York Magazine which highlights the current regulatory environment that financial institutions operate under. Continue reading here. Readers may also be interested in the Glass-Stegall Act, Dodd-Frank Act, and Volcker Rule, all of which are mentioned in the article.

 

Ex-Investment Banker Shares All and A Kinder, Gentler, Philosophy Of Success

“As a young banker in M&A, you have no social life, I mean, none. A work week has seven days. There’s no time for friends, and when you have a few hours off, you try to maximise it. Drink really hard, party wild, and you get confronted with drugs – which seems to be a taboo although many do it. You need to feel in those few moments that you’re still alive. On Sundays, following one of these binges, I would wake up feeling so rotten, so empty.

“I used to be the kind of person who enjoys life, who gets up in the morning eager for another day. The past two years I found myself changing. I lost my interest in politics, in sports … I began to wonder: what’s happening to me?

“My flatmate is in finance too. I’ve seen him coming home crying, from exhaustion, from something that happened to him. Why are we doing this to ourselves? My sense is that the majority of the people in finance have an urge to prove themselves. And banks offer a platform where they can do so. I feel there’s a particular kind of insecurity to many bankers, a form of neediness and a deep desire to compensate. Love?

“Many people in banking try to project an image of perfection, and banks play to that, trying to make you look perfect and feel invulnerable. It’s very easy to get hooked to that life, to become addicted to work and the money. I am sure it would have happened to me, had I done this work for too long.

“Imagine. 25 years old, and in my first year I made £45k plus a 70% bonus. So over 75k, one year out of university. That is quite something, let me tell you. But within six months you get used to it. I would spend £250 on a night out, and think nothing of it, spend £100 on dinner and genuinely think to myself: well, that was not too expensive.

“This was a lesson: it doesn’t really matter how much you make, because your lifestyle and expectations move up with your income.

Continue reading here. This article is part of the Voices of Finance series from The Guardian. Reminds me a lot of Reddit IAmA’s which I have curated here.

Many people who wish to enter the financial services industry have a strong desire to prove themselves. Given this investment banker’s illusion with the industry, I think Alain de Botton’s TED speech, “A Kindler, Gentler, Philosophy Of Success” is relevant. I highly recommend this speech to readers: