Published: April 22, 2025 at 7:01 a.m. ET Quest Diagnostics Inc.’s stock fell 3.6% early Tuesday, after the company posted better-than-expected first-quarter earnings and backed its guidance, but said the early part of the quarter was slow. Secaucus, N.J.-based Quest DGX had adjusted per-share earnings of $2.21, up 8.3% from a year ago and ahead of the $2.15 FactSet consensus. Revenue rose 12.1% to $2.652 billion, also ahead of the $2.630 billion FactSet consensus.