Date: August 9, 2011
Dow: up 430, or 4%
The market looked pretty glum following S&P's downgrade, but the Federal Reserve managed to save the day when it announced it will keep interest rates "exceptionally low" through 2013 in an effort to help the economy bounce back. The Dow recovered much of its losses from the previous day.
Unfortunately, the enthusiasm wouldn't last.
NEXT: European woes