US indexes are mixed in early trading; Twitter plunges

NEW YORK (AP) - Stock indexes are opening mixed on Wall Street while several individual companies were making big moves on earnings and deal news.

Apple gained 2 percent early Wednesday after reporting another record quarter of earnings as iPhone sales boomed.

Northrop Grumman jumped 7 percent after a strong earnings report and announcing a contract to build new bombers for the Air Force.

Twitter plunged 10 percent after issuing a revenue forecast that fell far short of what investors were looking for.

The Dow Jones industrial average rose 38 points, or 0.2 percent, to 17,620 in early trading.

The Standard & Poor's 500 index rose two points, or 0.1 percent, to 2,067. The Nasdaq composite fell six points, or 0.1 percent, to 5,024.