The Little Book of Common Sense Investing. Bogle John C.

is much more than a book about index funds. It is a book that is determined to change the very way that you think about investing. It is a book about why long-term investing serves you far better than short-term speculation; about the value of diversification; about the powerful role of investment costs; about the perils of relying on a fund’s past performance and ignoring the principle of reversion (or regression) to the mean (RTM) in investing; and about how financial markets work.

      When you understand how our financial markets actually work, you will see that the index fund is indeed the only investment that essentially guarantees that you will capture your fair share of the returns that business earns. Thanks to the miracle of compounding, the accumulations of wealth that are generated by those returns over the years have been little short of fantastic.

The traditional index fund (TIF)

      I’m speaking here about the traditional index fund. The TIF is broadly diversified, holding all (or almost all) of its share of the $26 trillion capitalization of the U.S. stock market in early 2017. It operates with minimal expenses and with no advisory fees, with tiny portfolio turnover, and with high tax efficiency. That traditional index fund – the first one tracked the returns of the Standard & Poor’s 500 Index – simply owns shares of the dominant firms in corporate America, buying an interest in each stock in the stock market in proportion to its market capitalization, and then holding it forever.

The magic of compounding investment returns. The tyranny of compounding investment costs

      Please don’t underestimate the power of compounding the generous returns earned by our businesses. Let’s assume that the stocks of our corporations earn a return of 7 percent per year. Compounded at that rate over a decade, each $1.00 initially invested grows to $2.00; over two decades, to $4.00; over three decades, to $7.50; over four decades, to $15.00, and over five decades, to $30.00.2

      The magic of compounding is little short of a miracle. Simply put, thanks to the growth, productivity, resourcefulness, and innovation of our corporations, capitalism creates wealth, a positive-sum game for its owners. Investing in equities for the long term has been a winner’s game.

      The returns earned by business are ultimately translated into the returns earned by the stock market. I have no way of knowing what share of these market returns you have earned in the past. But academic studies suggest that if you are a typical investor in individual stocks, your returns have probably lagged the market by around two percentage points per year.

      Applying that figure to the annual return of 9.1 percent earned over the past 25 years by the Standard & Poor’s 500 Stock Index, your annual return has likely been in the range of 7 percent. Result: investors as a group have been served only about three-quarters of the market pie. In addition, as explained in Chapter 7, if you are a typical investor in mutual funds, you’ve done even worse.

A zero-sum game?

      If you don’t believe that return represents what most investors experience, please think for a moment about “the relentless rules of humble arithmetic” (Chapter 4). These iron rules define the game. As investors, all of us as a group earn the stock market’s return.

      As a group – I hope you’re sitting down for this astonishing revelation – we investors are average. For each percentage point of extra return above the market that one of us earns, another of our fellow investors suffers a return shortfall of precisely the same dimension. Before the deduction of the costs of investing, beating the stock market is a zero-sum game.

A loser’s game

      As investors seek to outpace their peers, winners’ gains inevitably equal losers’ losses. With all that feverish trading activity, the only sure winner in the costly competition for outperformance is the person who sits in the middle of our financial system. As Warren Buffett recently wrote, “When trillions of dollars are managed by Wall Streeters charging high fees, it will usually be the managers who reap outsize profits, not the clients.”

      In the casino, the house always wins. In horse racing, the track always wins. In the Powerball lottery, the state always wins. Investing is no different. In the game of investing, the financial croupiers always win, and investors as a group lose. After the deduction of the costs of investing, beating the stock market is a loser’s game.

Less to Wall Street croupiers means more to Main Street investors

      Successful investing, then, is about minimizing the share of the returns earned by our corporations that is consumed by Wall Street, and maximizing the share of returns that is delivered to Main Street. (That’s you, dear reader.)

      Your chances of earning your fair share of the market’s returns are greatly enhanced if you minimize your trading in stocks. One academic study showed that during the strong bull market of 1990–1996 the most active one-fifth of all stock traders turned their portfolios over at the rate of more than 21 percent per month. While they earned the annual market return of 17.9 percent during that bull market period, they incurred trading costs of about 6.5 percent, leaving them with an annual return of but 11.4 percent, only two-thirds of the market return.

      Mutual fund investors, too, have inflated ideas of their own omniscience. They pick funds based on the recent performance superiority – or even the long-term superiority – of a fund manager, and often hire advisers to help them achieve the same goal (Warren Buffett’s “Helpers,” described in the next chapter). But as I explain in Chapter 12, the advisers do it with even less success.

      Oblivious of the toll taken by costs, too many fund investors willingly pay heavy sales loads and incur excessive fund fees and expenses, and are unknowingly subjected to the substantial but undisclosed transaction costs incurred by funds as a result of their hyperactive portfolio turnover. Fund investors are confident that they can consistently select superior fund managers. They are wrong.

Mutual fund investors are confident that they can easily select superior fund managers. They are wrong

      Contrarily, for those who invest and then drop out of the game and never pay a single unnecessary cost, the odds in favor of success are awesome. Why? Simply because they own shares of businesses, and businesses as a group earn substantial returns on their capital, pay out dividends to their owners, and reinvest what’s left for their future growth.

      Yes, many individual companies fail. Firms with flawed ideas and rigid strategies and weak managements ultimately fall victim to the creative destruction that is the hallmark of competitive capitalism, only to be succeeded by other firms.3 But in the aggregate, businesses have grown with the long-term growth of our vibrant economy. Since 1929, for example, our nation’s gross domestic product (GDP) has grown at a nominal annual rate of 6.2 percent; annual pretax profits of our nation’s corporations have grown at a rate of 6.3 percent. The correlation between the growth of GDP and the growth of corporate profits is 0.98. (1.0 is perfect.) I assume that this long-term relationship will prevail in the years ahead.

Get out of the casino and stay out!

      This book intends to show you why you should stop contributing to the croupiers of the financial markets. Why? Because during the past decade they have raked in something like $565 billion each year from you and your fellow investors. It will also tell you how easy it is to avoid those croupiers: Simply buy a Standard & Poor’s 500 Index fund or a total stock market index fund. Then, once you have bought your stocks, get out of the casino – and stay out. Just hold the market portfolio forever. And that’s what the traditional index fund does.

Simple but not easy

      This investment philosophy is not only simple and elegant. The arithmetic on which it is based is irrefutable. But it is not easy to follow its discipline. So long as we investors accept the status quo of today’s crazy-quilt financial market system, so long as we enjoy the excitement (however costly) of buying and selling stocks, and so long as we fail to realize that there is a better way, such a philosophy will seem counterintuitive. But I ask you to carefully consider the impassioned message of this Little Book. When you do, you too will want to join the index revolution and invest in a new, “more economical, more efficient, even more honest way,”4 a more productive way that will put your own interests first.

Thomas

2

Over the past century, the average nominal return on U.S. stocks was 10.1 percent per year. In real terms (after 3.4 percent inflation) the real annual return was 6.7 percent. During the next decade, both returns are likely to be significantly lower. (See Chapter 9.)

3

“Creative destruction” is the formulation of Joseph E. Schumpeter in his 1942 book Capitalism, Socialism, and Democracy.

4

“Economical,” “efficient,” and “honest” are the words I used in my 1951 Princeton University thesis, “The Economic Role of the Investment Company.” Some principles are eternal.