NEW YORK (AP) — Energy stocks dove again on Wednesday as oil dropped to its lowest price since last summer, extending their dismal start to the year. Gains for health care and technology stocks helped hem in losses for broader market indexes.

The Standard & Poor’s 500 index dipped 1.42 points, or 0.1 percent, to 2,435.61. The Dow Jones industrial average fell 57.11, or 0.3 percent, to 21,41...