All three indexes surged more than 1% after the Federal Reserve announced a modest scaling back of its stimulus program. Instead of pumping $85 billion per month into the markets through bond purchases, the Fed said it will scale the purchases back to $75 billion per month beginning in January.
The Fed's decision to wind down -- or taper -- its stimulus program can be interpreted as a sign the economy is getting back on its feet and no longer needs as much assistance from the central bank.
That pleased investors all around, as the change isn't so drastic to start. But it also may satisfy Fed critics who believe the central bank would be in danger of creating runaway inflation if it did not begin to cut back on the accommodative polices that it instituted in response to the financial crisis.
Despite Wednesday's big gains, December has so far been a dud for the stock market. All three indexes are flat for the month. But a so-called Santa Claus rally still has time to transpire, especially now that investors have a lot more clarity from the Fed.
But even without any huge gains, 2013 has been a stellar year for stocks. The Dow and S&P 500 are up more than 20% for the year, while the Nasdaq has surged more than 30%.
Those gains put the Dow on track for its best year since 2003 and the S&P 500 on pace for its best year since 1997. The Nasdaq's gains would be the index's best since 2009.
Gold prices tumbled more than 3% and traders blamed the Fed's taper decision. Prices fell below $1,200 an ounce for the first time in over three years. The Gold ETF ( and gold miners including )Newmont Mining (Fortune 500) were taking a hit. The sharp drop generated plenty of buzz on , StockTwits.
But a handful of investors remained optimistic, suggesting that gold could again offer some safe haven appeal if Congress bickers over the debt ceiling early next year.
In corporate news, Darden Restaurants (Fortune 500) missed on earnings. The company also announced plans to spin off the Red Lobster chain, which experienced a slump in sales. ,
Target (Fortune 500)shares fell more than 2% after the retailer said that as many as 40 million people who shopped at Target stores in the three weeks after Thanksgiving may be affected by a , breach of credit and debit card data.
Though it remains to be seen how the breach will impact how consumers feel about shopping at Target in the future, one StockTwits trader mentioned that the timing of the breach is particularly unfortunate, given that the holidays are key for retailers.
"$TGT data breach news awful timing so close to Christmas, Bearish," said quantitude.
Facebook (Fortune 500) fell after the social media company filed to sell 70 million shares, mostly to index funds that will be buying the stock once it is added to the S&P 500. That includes more than , 41 million shares from co-founder and CEO Mark Zuckerberg.
Despite the move downward, StockTwits traders remained bullish on Facebook, which is up more than 100% so far in 2013.
Another trader suggested the pullback may be a good buying opportunity, highlighting that Facebook is slated to be added to the S&P 500 at the end of trading this week, an event that will help further expand the stock's investor base.
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