After Washington announced a fiscal cliff deal Tuesday, investors raced into stocks and other risk-on trades, relieved that the country wasn't going to tumble over the dreaded fiscal cliff.
"You've just removed a huge worry from the market," Jonathan Samson, chief investment officer at Samson Capital Advisors told The New York Times.
In response, the Dow finished the first trading day of 2013 up 308. 41 points, or 2.35%. The gains also propelled the benchmark index to its highest close since Sept. 14, 2012. Volume was heavy with more than 4.5 million shares changing hands on the Big Board.
The Standard & Poor's 500 Index added 36.23 points, or 2.54%, and the tech heavy Nasdaq tacked on 92.75 or 3.07%.
Gold gained $13 to close at $1,688.80; silver added 78 cents to $31.01, and oil gushed higher by $1.30 to finish the day at $93.12.
But by 10 a.m. today, the Dow had slipped more than 30 points, or 0.23%.
Some Wall Street analysts were quick to warn that the fiscal cliff euphoria will die out by next week, and that yesterday's rise was nothing more than a short-term relief rally.
"Considering there are so many headwinds facing the economy, including the debt ceiling negotiation in 60 days, the smart money knows the bullish sentiment will be short-lived. The lesson for investors here is 'buyer beware,'" Todd Schoenberger, managing partner at LandColt Capital wrote in an email to FOX Business Network.