Apple\'s shares plunged more than 12 percent Thursday after its earnings disappointment, but the Dow held up in positive territory with help from a 1.0 percent Boeing rebound. Netflix meanwhile soared 42.2 percent in heavy trade after showing strong growth in subscribers, driving income to $945 million in the fourth quarter. At the close, the Dow Jones Industrial Average was up 46.00 (0.33 percent) to 13,825.33. The broad-based S&P 500 ended flat, adding just 0.01 (0.00 percent) to 1,494.82. The tech-heavy Nasdaq Composite was down 23.29 (0.74 percent) to 3,130.38.