Well, we started out the year with five huge multibillion dollar Wall Street banks that did worldwide business (hence the
world stock market meltdowns) and that serviced/held/owned other huge corporations. We are now down to
two.
Multibillion dollar worldwide roadkill:
Bear Stearns
Lehman Brothers (biggest bankruptcy in the history of the Earth)
Merrill Lynch (only one bought out by another company before it went bankrupt)
On the road writhing in probable death (these are not holding companies, but are still huge firms that will cause worldwide problems when they fall):
AIG (biggest insurance company in the US; also has worldwide business connections that will cause worldwide fallout if it goes bellyup)
Washington Mutual (USA's biggest savings and loan)
There have been rumors for months that some of the biggest banks in the US such as Wachovia might go under, too. And with Bank of America gobbling up failing companies like Countrywide (a huge mortgage company that had huge numbers of accounts with funky subprime crap) and Merrill Lynch, who knows how stable it now is, as this huge huge huge company will have to try to absorb billions in losses from its new aquisitions...
And the government had to take over Freddy and Fanny - two firms originally set up by the government to deal with mortgages. The government
had to take these over, as if those two went bankrupt, there would have been zero credibility in US bonds and the like in world markets, and the government might have fallen.
Yes, all of this is due to the subprime crisis.
And I feel really bad for the employees at these companies who will now be losing very well paying jobs - tens of thousands of really well paying jobs are gone now.

And that many more mortgages and credit cards and car loans and the like will now also be in default.