Long-term mutual fund holders often drift into indifference. After a few years, they have no sense of connection with their money. All fund statements and mailings are glanced at and filed or thrown out. In the back of their minds, they know there is something they ought to be doing but having put it off for many years, they simply leave it be. Mutual funds in IRAs and 401(k)s are often abandoned for decades. On retirement, the holders are shocked at how little money has accumulated.

Active investors become resentful of fund managers. Fund managers’ salaries are insulated from fund results. Salaries rise in bad years as well as good. With no stake in the outcome of their investment decisions, fund managers’ interest and yours are opposed. Fund managers make more Money than doctors, lawyers, and all but the CEOs of the largest corporations. Yet their results are no better than random picks from the stock tables.