An active investor. Photo from Celal Teber, Teber Photography, United Kingdom

A great deal!—to answer the title question. Three examples will illustrate the loss associated with active investing, or, stated positively, the gain from passive investing. The examples build on last week when I showed that active and passive investing had to achieve the same average gross returns. Yet active investing costs more, so in the end, the net returns to retirees are smaller with active investing.

Active investing links retirees with financial planners, brokers and actively managed mutual funds. Active investors believe they can identify low-priced stocks to buy, or that they can predict which stocks will drop in price so they can sell. In addition to individual stocks and bonds, they often buy actively managed mutual funds where a fund manager does the buying and selling. Continue reading →