Stocks are pushing further into record territory as investors welcome a move by China to stimulate its economy by lowering interest rates.Hints from the head of Europe's central bank that it might step up its own stimulus efforts also put investors in a buying mood Friday.The Standard & Poor's 500 index rose 10 points, or 0.5 percent, to 2,063.The Dow Jones industrial average rose 91 points, also 0.5 percent, to 17,810. The Nasdaq composite added 11 points, or 0.2 percent, to 4,712.The S&P 500 and the Dow are at record highs.Material and energy stocks rose the most. Caterpillar jumped 4 percent, the biggest gain in the Dow.Bond prices rose. The yield on the 10-year Treasury note fell to 2.31 percent.