Wall Street’s bulls have reason to celebrate: The Dow Jones industrial average has crossed the 13,000 mark for the first time since the financial crisis after European leaders reached a new deal to prop up the Greek economy.

The Dow first crossed 13,000 in May 2008, but was battered down soon after when the mortgage bubble burst.

The blue chip index's latest surge has been driven by a stream of evidence signaling that the U.S. economy is on the mend. The Dow has risen 20% since hitting a recent low of 10,655.30 on Oct. 3.