In a rousing performance, the Dow Jones industrial average and Standard & Poor's 500 index hit record highs Tuesday, but they did so without much help from bank stocks.

The Dow closed at 8,295.61, up 115.09 points, topping its previous high of 8,259.31 last Aug. 6, and the broader S&P was up 8.27 points, to 1,019.01. Investor optimism about the economy and solid earnings from biotech and high-tech companies propelled the drive, market watchers said.

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