NEW YORK — Stocks are edging higher in midday trading on Wall Street after several big companies turned in solid earnings.

The Dow Jones industrial average was up 23 points, or 0.1 percent, to 15,544 shortly before noon Eastern Daylight Time Tuesday.

The Standard & Poor's 500 was up four points, or 0.2 percent, to 1,689. Seven of the index's 10 industry sectors rose, led by technology stocks.

The technology-heavy Nasdaq composite rose 28 points, or 0.8 percent, to 3,627. Apple, the biggest component of the index, rose 2 percent to $456.

Investors were keeping a close eye on the Federal Reserve. The central bank began a two-day policy meeting Tuesday.

Goodyear Tire & Rubber jumped 10 percent to $18.74 after its earnings more than doubled. Sales in Latin America rose sharply.