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18 August 1982: NYSE trades 100 million shares in a day

The New York Stock Exchange recorded its first day with more than 100 million shares traded, about 132.7 million in total. It came less than a week after the market's 1982 low, as falling interest rates sparked a powerful rally. Few realized it at the time, but this was the early stage of one of the greatest bull markets in history, which would run, with interruptions, through the end of the century.

The lesson: Great bull markets often begin amid gloom, when few believe a lasting recovery has started.

What it meant for investors

$1,000 in S&P 500 index fund at the start of 1990 → $19,429 today, vs $19,429 in the S&P 500.

We start the clock at the start of 1990, the first year in our price data after the event. That is 19.4 times the money, but $0 less than a plain index fund made over the same years.

What S&P 500 index fund teaches: Owning the whole market removes the risk of picking the wrong company but not the risk of a lost decade, so time horizon matters as much as diversification.

Bought inPrice thenWorth todayS&P 500 would be
1990$350$19,429$19,429
1995$460$14,783$14,783
2000$1,470$4,626$4,626

green = beat the S&P 500 · red = lost money

What if you bought S&P 500 index fund? Every starting year and the full story →

18 August 1982: NYSE trades 100 million shares in a day