Fifty years ago today (August 31, 1976), Jack Bogle and Vanguard launched the first index mutual fund: First Index Investment Trust, which tracked the S&P 500 index (and which is now known as the Vanguard 500 Index Fund).
It’s hard to overstate the significance of that event, in terms of its impact on individual investors. Today, using low-cost, index-tracking funds is largely the default way to invest. The success of Vanguard’s index-tracking funds — and the fact that they operated the funds at-cost — revolutionized the entire industry.
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