NEW YORK - Stocks hit four-year highs after the European Central Bank laid out a concrete plan to support the region's struggling countries through buying bonds.
That set off a global market rally. The Dow Jones industrial average jumped 244 points to 13,292, its highest close since December 2007.
The Standard & Poor's 500 index soared 29 points to close at 1,432, the highest since January 2008.
The Nasdaq composite index jumped 66 points to 3,136. That was its highest level in 12 years.
Mario Draghi, the ECB's president, said the new program will have no set limit on the amount of government bonds it can buy.
Nearly four stocks rose for every one that fell on the New York Stock Exchange. Trading volume was 3.9 billion, above the recent average.
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