Stocks are opening lower again on Wall Street, putting the market on track for a weekly loss after two weeks of gains. Overseas markets were also weaker Friday after a rise in virus cases in South Korea and other countries revived anxiety about the outbreak. Cabot Oil & Gas sank after reporting weak results. The S&P 500 fell 13 points, or 0.4%, to 3,359. The Dow Jones Industrial Average fell 108 points, or 0.4%, to 29,111. The Nasdaq lost 40 points, or 0.4%, to 9,707. Bond prices rose. The yield on the 10-year Treasury note fell to 1.49%.