Investors bet big on U.S. stocks Wednesday, giving the market its biggest single-day gain in nearly four months and pushing the major indexes to record highs.
The Dow Jones industrial average rose above 21,000 points for the first time in what was the biggest gain for the blue-chip index so far this year.
Banks were the biggest gainers amid heightened expectations that an improving economy will lead to higher interest rates. Energy stocks also notched big gains. Utilities and real es
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