BURTON G. MALKIEL

A Random Walk Down Wall Street

What is a cynic? A man who knows the price of everything, and the value of nothing.

Oscar Wilde, Lady Windermere's Fan

In this book I will take you on a random walk down Wall Street, providing a guided tour of the complex world of finance and practical advice on investment opportunities and strategies. Many people say that the individual investor has scarcely a chance today against Wall Street's professionals. They point to techniques the pros use such as "program trading," "portfolio insurance," and investment strategies using complex derivative instruments, and they read news reports of mammoth takeovers and the highly profitable (and sometimes illegal) activities of well-financed arbitrageurs. This complexity suggests that there is no longer any room for the individual investor in today's institutionalized markets. Nothing could be further from the truth. You can do as well as the experts — perhaps even better. As I'll point out later, it was the steady investors who kept their heads when the stock market tanked in October 1987, and then saw the value of their holdings eventually recover and continue to produce attractive returns. And many of the pros lost their shirts during the 1990s using derivative strategies they failed to understand.

This book is a succinct guide for the individual investor. It covers everything from insurance to income taxes. It gives advice on shopping for the best mortgage and planning an Individual Retirement Account. It tells you how to buy life insurance and how to avoid getting ripped off by banks and brokers. It will even tell you what to do about gold and diamonds. But primarily it is a book about common stocks — an investment medium that not only has provided generous long-run returns in the past but also appears to represent good possibilities for the years ahead. The life-cycle investment guide described in Part Four gives individuals of all age groups specific portfolio recommendations for meeting their financial goals.

What Is a Random Walk?

A random walk is one in which future steps or directions cannot be predicted on the basis of past actions. When the term is applied to the stock market, it means that short-run changes in stock prices cannot be predicted. Investment advisory services, earnings predictions, and complicated chart patterns are useless. On Wall Street, the term "random walk" is an obscenity. It is an epithet coined by the academic world and hurled insultingly at the professional soothsayers. Taken to its logical extreme, it means that a blindfolded monkey throwing darts at a newspaper's financial pages could select a portfolio that would do just as well as one carefully selected by the experts.

Now, financial analysts in pin-striped suits do not like being compared with bare-assed apes. They retort that academics are so immersed in equations and Greek symbols (to say nothing of stuffy prose) that they couldn't tell a bull from a bear, even in a china shop. Market professionals arm themselves against the academic onslaught with one of two techniques, called fundamental analysis and technical analysis, which we will examine in Part Two. Academics parry these tactics by obfuscating the random-walk theory with three versions (the "weak," the "semi-strong," and the "strong") and by creating their own theory, called the new investment technology. This last includes a concept called beta, and I intend to trample on that a bit. By the 1990s, even some academics joined the professionals in arguing that the stock market was at least somewhat predictable after all. Still, as you can see, there's a tremendous battle going on, and it's fought with deadly intent because the stakes are tenure for the academics and bonuses for the professionals. That's why I think you'll enjoy this random walk down Wall Street. It has all the ingredients of high drama — including fortunes made and lost and classic arguments about their cause.

But before we begin, perhaps I should introduce myself and state my qualifications as guide. I have drawn on three aspects of my background in writing this book; each provides a different perspective on the stock market.

First is my employment at the start of my career as a market professional with one of Wall Street's leading investment firms. It takes one, after all, to know one. In a sense, I remain a market professional in that I currently chair the investment committee of an insurance company that invests more than $250 billion in assets and sit on the boards of several of the largest investment companies in the nation, which control a total of $400 billion in assets. This perspective has been indispensable to me. Some things in life can never fully be appreciated or understood by a virgin. The same might be said of the stock market.

Second is my current position as an economist. Specializing in securities markets and investment behavior, I have acquired detailed knowledge of academic research and findings on investment opportunities. I have relied on many new research findings in framing recommendations for you.

Last, and certainly not least, I have been a lifelong investor and successful participant in the market. How successful I will not say, for it is a peculiarity of the academic world that a professor is not supposed to make money. A professor may inherit lots of money, marry lots of money, and spend lots of money, but he or she is never, never supposed to earn lots of money; it's unacademic. Anyway, teachers are supposed to be "dedicated," or so politicians and administrators often say — especially when trying to justify the low academic pay scales. Academics are supposed to be seekers of knowledge, not of financial reward. It is in the former sense, therefore, that I shall tell you of my victories on Wall Street.

This book has a lot of facts and figures. Don't let that worry you. It is specifically intended for the financial layperson and offers practical, tested investment advice. You need no prior knowledge to follow it. All you need is the interest and the desire to have your investments work for you.

Investing as a Way of Life Today

At this point, it's probably a good idea to explain what I mean by "investing" and how I distinguish this activity from "speculating." I view investing as a method of purchasing assets to gain profit in the form of reasonably predictable income (dividends, interest, or rentals) and/or appreciation over the long term. It is the definition of the time period for the investment return and the predictability of the returns that often distinguish an investment from a speculation. An excellent analogy from the first Superman movie comes to mind. When the evil Luthor bought land in Arizona with the idea that California would soon slide into the ocean, thereby quickly producing far more valuable beach-front property, he was speculating. Had he bought such land as a long-term holding after examining migration patterns, housing-construction trends, and the availability of water supplies, he would probably be regarded as investing — particularly if he viewed the purchase as likely to produce a dependable future stream of cash returns.

Let me make it quite clear that this is not a book for speculators: I am not going to promise you overnight riches. I am not promising you stock-market miracles as one best-selling book of the 1990s claimed. Indeed, a subtitle for this book might well have been The Get Rich Slowly but Surely Book. Remember, just to stay even, your investments have to produce a rate of return equal to inflation.

Inflation in the United States and throughout most of the developed world fell to the 2 percent level in the late 1990s, and some analysts believe that relative price stability will continue indefinitely. They suggest that inflation is the exception rather than the rule and that historical periods of rapid technological progress and peacetime economies were periods of stable or even falling prices. It may well be that little or no inflation will occur during the first decades of the twenty-first century, but I believe investors should not dismiss the possibility that inflation will accelerate again at some time in the future. We cannot assume that the European economies will continue to have double-digit unemployment forever and that the deep recessions in Japan and many emerging markets will persist. Moreover, as our economies become increasingly service oriented, productivity improvements will be harder to come by. It still will take four musicians to play a string quartet and one surgeon to perform an appendectomy throughout the twenty-first century, and if musicians' and surgeons' salaries rise over time, so will the cost of concert tickets and appendectomies. Thus, it would be a mistake to think that upward pressure on prices is no longer a worry.

If inflation were to proceed at a 3 to 4 percent rate — a rate much lower than we had in the 1970s and early 1980s — the effect on our purchasing power would still be devastating. The following table shows what an average 4.8 percent inflation has done over the 1962-88 period. My morning newspaper has risen 1,100 percent. My afternoon Hershey bar has risen even more, and it's actually smaller than it was in 1962, when I was in graduate school. If inflation continued at the same rate, today's morning paper would cost more than one dollar by the year 2010. It is clear that if we are to cope with even a mild inflation, we must undertake investment strategies that maintain our real purchasing power; otherwise, we are doomed to an ever-decreasing standard of living.

Investing requires a lot of work, make no mistake about it. Romantic novels are replete with tales of great family fortunes lost through neglect or lack of knowledge on how to care for money. Who can forget the sounds of the cherry orchard being cut down in Chekhov's great play? Free enterprise, not the Marxist system, caused the downfall of Chekhov's family: They had not worked to keep their money. Even if you trust all your funds to an investment adviser or to a mutual fund, you still have to know which adviser or which fund is most suitable to handle your money. Armed with the information contained in this book, you should find it a bit easier to make your investment decisions.

Most important of all, however, is the fact that investing is fun. It's fun to pit your intellect against that of the vast investment community and to find yourself rewarded with an increase in assets. It's exciting to review your investment returns and to see how they are accumulating at a faster rate than your salary. And it's also stimulating to learn about new ideas for products and services, and innovations in the forms of financial investments. A successful investor is generally a well-rounded individual who puts a natural curiosity and an intellectual interest to work to earn more money.