By Ellis Mnyandu

Bank stocks were top drags, with Citigroup sliding 13 percent, while shares of JPMorgan and Bank of America fell 4 percent and 3 percent respectively.

The fall in shares of Citigroup, a Dow component, came a day after the embattled bank agreed to sell a controlling stake in its crown jewel unit, the Smith Barney retail brokerage, to Morgan Stanley for $2.7 billion.

Analysts have said the Smith Barney sale was a precursor to the break-up of Citigroup and suggested the bank must be urgently seeking to replenish capital due to mounting losses.

The Dow Jones industrial average <.DJI> fell 169.17 points, or 2.00 percent, to 8,279.39. The Standard & Poor's 500 Index <.SPX> declined 21.03 points, or 2.41 percent, to 850.76. The Nasdaq Composite Index <.IXIC> shed 32.48 points, or 2.10 percent, to 1,513.98.

The S&P financial index <.GSPF> fell nearly 5 percent.

Sales at U.S. retailers fell 2.7 percent in December, government data showed on Wednesday, as a deteriorating economic climate forced consumers to cut back on spending during the key holiday period.

(Editing by James Dalgleish)