Stock market Indexes reach all-time highs The market’s biggest winners this year, technology and health care, powered U.S. stock indexes to more all-time highs on Tuesday. Huge technology companies like Apple and Facebook continued their ascent, while strong reports from companies including medical device maker Medtronic and construction and technical services company Jacobs Engineering helped health care and industrial companies, respectively. Basic materials companies, which have done better than the rest of the Standard & Poor’s 500 index, also rose.