Stocks are ending modestly lower on Wall Street, dragged down by declines in technology and materials companies, the AP reports. Apple and Microsoft each fell about 0.5% Thursday. The technology sector is still far outpacing the rest of the market this year. Retailers also did poorly. Supermarket chain Kroger plunged 19% after reporting weak sales and cutting its profit forecast. The Standard & Poor's 500 index fell 5 points, or 0.2%, to 2,432. The Dow Jones industrial average gave up 14 points, or 0.1%, to 21,359. The Nasdaq composite, which is heavily weighted with technology companies, gave up 29 points, or 0.5%, to 6,165. (More stock market stories.)