U.S. stocks rose slightly to post new record closing highs Monday. The Dow Jones industrial average rose 27.13, or 0.1 percent, to 27,359.16. The broader S&P 500 index was virtually unchanged, rising 0.53 to 3,014.30. The technology-heavy Nasdaq composite index rose 14.04, or 0.2 percent, to 8,258.18.