9. J.P. Morgan Chase & Co. Strong performance in its investment-banking unit helped the Wall Street outfit post a stunning 70% spike in profits, to $14.4 billion. Total revenues of $99.7 billion are up 25% from 2005. |  Wal-Mart retakes the No. 1 slot on the Fortune 500 this year. See where America's largest corporations rank, and why. (more)  See the 37 companies that made both the Fortune 1000 and Best Companies to Work For lists this year. (more) |
