WhyItDropped

S&P 500 · September 1, 2010

After more easing was signalled

+2.95%

single-day change vs previous close

Part of a longer stretch

The rise the second round of QE bought

early in it · 2010-07-02 → 2011-04-29, +33.35% over the whole period

What happened that day?

  • On 1 September 2010 the S&P 500 rose 2.95%
  • In late August the Fed chair had said it would act further if needed
  • A factory survey that morning came in well above forecast, easing the double-dip fear
  • With the Fed behind it and data not bad, the conditions for rising were in place
  • The second round of quantitative easing began in November and the index rose sharply into April 2011
  • In this stretch the index was 12.87% below its peak
  • The gain in this stretch came from policy more than from the economy

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 written from the sources listed above.