Change Healthcare Inc. CHNG, -7.79% shares rose 7% in the extended session Tuesday after the healthcare-technology company reported first-quarter results. The Nashville, Tenn.-based company rang up $71.9 million in net income, or 28 cents a share. Revenue rose slightly year-over-year to $855.6 million. Analysts surveyed by FactSet had estimated net income of 36 cents a share on revenue of $796 million. Change Healthcare went public in June. The S&P 500 index SPX, +1.48% has gained 17% this year.