Stocks turn lower after Dow crosses 16,000 Stocks are ending mostly lower after the market reached two major milestones earlier in the day. The Standard & Poor's 500 index closed with a modest loss after crossing 1,800 for the first time Monday. The Dow Jones industrial average also reached 16,000 for the first time. Neither index closed above those levels, however. The S&P 500 fell six points, of 0.4 percent, to close at 1,791. The Dow edged up 14 points, or 0.1 percent, to 15,976. The Nasdaq composite gave up 37 points, or 0.9 percent, to 3,949. Boeing rose after getting a large number of orders at the Dubai Airshow. The yield on the 10-year Treasury note fell to 2.67 percent. Three stocks fell for every two that rose on the New York Stock Exchange.