A minuscule 4 percent of funds produce market-beating after-tax results with a scant 0.6 percent (annual) margin of gain. The 96 percent of funds that fail to meet or beat the Vanguard 500 Index Fund lose by a wealth-destroying margin of 4.8 percent per annum.

A minuscule 4 percent of funds produce market-beating after-tax results with a scant 0.6 percent (annual) margin of gain. The 96 percent of funds that fail to meet or beat the Vanguard 500 Index Fund lose by a wealth-destroying margin of 4.8 percent per annum.

I've always viewed high-frequency trading as a tax on the rest of us.

Jack Bogle's passionate cry of Enough! contains a thought-provoking litany of life lessons regarding our individual roles in commerce and society. Employing a seamless mix of personal anecdotes, hard evidence and all-too-often-underrated subjective admonitions, Bogle challenges each of us to aspire to become better members of our families, our professions and our communities. Rarely do so few pages provoke so much thought. Read this book.

Millions of mutual-fund investors sleep well at night, serene in the belief that superior outcomes result from pooling funds with like-minded investors and engaging high-quality investment managers to provide professional insight. The conventional wisdom ends up hopelessly unwise, as evidence shows an overwhelming rate of failure by mutual funds to deliver on promises.

When you look at the results on an after-fee, after-tax basis over reasonably long periods of time, there's almost no chance that you end up beating the index fund.

Most active mutual funds are more interested in collecting fees than in boosting returns for investors.