S&P 500 · April 5, 2001

The day after the low

+4.37%

single-day change vs previous close

Part of a longer stretch

The dot-com bust hits the S&P 500

midway through · 2000-03-24 → 2002-10-09, -49.15% over the whole period

What happened that day?

The S&P 500 rose 4.37% to close at 1,151.44. No single trigger for the day could be pinned down
The previous session, 4 April, was the low of this episode — 20.07% below the December 2000 high
A big rise the day after a low is a common shape. Once everyone who had to sell has sold, only buyers are left
But you only know it was the low afterwards. To anyone in the market that day it was just another bounce
The technology bubble was still emptying, and another down leg was still ahead
Much of this day's gain was given back in the next session

Sources

Every figure on this page is recomputed from the original daily closing prices and checked against them at build time. The account of what happened is put together from the public record; where a specific source was consulted it is listed above.