On October 19, 1987, the stock market crashed. It was the worst single-day decline, almost doubling the previous worst day in 1929.
Unlike in 1929, something unique happened this time. Questionnaires were sent to individual and institutional investors to get inside their heads that day.
Robert Shiller was behind it and compiled almost 1,000 responses into a report released a month later. Two things stood out.
Most investors did nothing that day.
In the less connected world of 1987, most individual investors heard about the crash by 2:00 pm Eastern Time.
However, institutional investors knew something was up within an hour of the market open. Then they started talking to brokers and friends as anxiety kicked in. Yet, despite the fear, a remarkably small number of the investors surveyed actually bought or sold that day. Continue Reading…

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