The S&P and Dow Jones industrials held on to gains to finish at record highs again on Friday as Wall Street's three main indexes notched weekly gains driven by momentum in artificial intelligence stocks.

Unofficial data for closing levels showed that the Dow Jones Industrial Average rose 60.58 points, or 0.16 percent, to 39,129.69, the S&P 500 closed up 2.28 points, or 0.04 percent, to 5,088.78, while the Nasdaq Composite lost 44.80 points, or 0.28 percent, to 15,996.82.