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by GCA10
2709 days ago
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Not quite sure we can credit Bogle with creating the index fund. He certainly popularized it, though. Bill Fouse at Wells Fargo got a rather clunky version of an index fund started in 1971, based on equal weighting of all NYSE shares. It took a couple more years for various people, including Dean LeBaron (later of Batterymarch) and John Bogle to get everything working the right way with timely capitalization weighting and rebalancing. That's when the S&P 500 became the index of choice. Getting index funds to track consistently over time takes a fair amount of market monitoring plus basic computing power. (Reinvesting dividends brings one set of headaches; so does adjusting specific stocks' weightings as individual companies either shrink their float by buying back stock or expand it by issuing new shares.) All these calculations seem trivial today, but back in the 1970s, we didn't have up-to-the-minute electronic Edgar filings at the SEC. Or abundant computer power on everyone's desks. |
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