Financial Markets Rebound After Europe's Leaders Bail Out Greece

From Asia to Europe to Wall Street, there was a huge sigh of relief today after European leaders agreed to a nearly $1 trillion bailout package to aid debt-addled Greece.

Investors on Wall Street sent the Dow soaring today to close up 404.71 points, an increase of nearly four percent.

Traders were relieved that Europe was finally doing something about its debt crisis.

What it did was a thunderbolt -- a $957 billion rescue plan, larger than almost anyone in the U.S. financial community had expected.

VIDEO: Stocks Shoot UPPlay

"Clearly the size of this was double what anyone had been talking about," said Art Hogan of Jeffries and Company.

Bailout Deja Vu

For Americans watching, it was a case of bailout deja vu. There were emergency weekend meetings, but this time, there was no Treasury Secretary Timothy Geithner and no Federal Reserve Chairman Ben Bernanke.

Instead, German Chancellor Angela Merkel and French President Nicholas Sarkozy were seen in meetings, working the phones.

VIDEO: Effort to contain Greeces debt crisis sends world stock markets soaring.Play
EU's Effort to Protect the Euro

In the wee hours of the morning, the European leaders emerged with their own "shock and awe" bailout, not a moment too soon.

They realized that Greece, drowning in debt, was already dragging down the global economy. It threatened to bring down Spain, Portugal, Ireland and Italy with it, each country falling like a domino.

Is the Bailout Enough

Economists say this bold move will hold back that domino effect before the first brick falls, but the question now is, for how long? The $1 trillion fix is dwarfed by the actual debt that remains divided across the European Union.

"The markets are reacting as though we've suddenly landed the biggest catch in the ocean," said Stephen Pope of Cantor Fitzgerald Europe. "That fresh fish is going to be stinking up the docks by Friday."

Wall Street Cheers Greek Bailout, But For How Long?

Economists warn that this bailout only buys Europe time. Now comes the hard part -- ending the unchecked spending and borrowing that got Greece and other European countries into such trouble in the first place.

It's a lesson in how markets overseas are so interconnected to the United States. The average American investor took a significant hit last week, losing some $4500 in their 401k funds as Europe dragged down the global economy. Today, the markets recouped $3700 of that loss, but experts warn that it could very well be a temporary fix.