Why index funds demand active choices

为何指数基金需要主动选择

Editor's Picks from The Economist

2026-08-18

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A handpicked article read aloud from the latest issue of The Economist. Despite their reputation for being passive, index funds still require active choices and manager discretion. Topics covered: Index fundsInvestingStocks Listen to what matters most, from global politics and business to science and technology—subscribe to The Economist.
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  • The launch of the Vanguard First Index Investment Trust 50 years ago this month could have gone better.

  • Jack Bogle, Vanguard's founder, called it an abject failure.

  • He had hoped to raise somewhere between $50 million and $150 million, but got only a little over $11 million.

  • That's $65 million today.

  • As the first fund aiming to do no more than track a stock market index, America's S&P 500,

  • that was available to individual investors, it nevertheless raised hackles.

  • One conclusion, usually expressed with considerable feeling, is that index funds are a cop-out

  • and a fad that will soon disappear,

  • sniffed an article in the Financial Analyst's Journal, published later the same year.

  • Half a century on, there is no sign of that.

  • Over 50% of net assets overseen by American investment funds are in trackers,

  • estimates the Investment Company Institute, an industry group.

  • For funds focused on domestic stocks, the share is 64%.

  • Whether through your own savings, a corporate pension scheme,

  • or a university endowment, you probably have a stake in at least one.

  • Predictably, the professional stock pickers, whose lunch has been eaten, are as furious as ever.

  • Worse than Marxism, thundered Bernstein a broker in 2016. Last month, Terry Smith,

  • a favourite fund manager of British retail savers, spent much of his half-yearly investor letter

  • blaming his long underperformance on a market which is dominated by so-called passive or index funds.

  • Full disclosure, your columnist, who used to own units in one of Mr Smith's funds,