Quest Diagnostics is a leading U.S. provider of clinical laboratory testing and diagnostic information services. It processes routine blood and pathology tests as well as more specialized assays for physicians, hospitals, employers, and health plans. Scale in logistics, a nationwide patient service network, and broad test menus differentiate it among independent clinical labs.
| Quarter | Revenue | YoY % | Earnings | YoY % |
|---|---|---|---|---|
| Q2 2025 | 2,761 | — | 281 | 6.7% |
| Q3 2025 | 2,816 | — | 243 | -5.1% |
| Q4 2025 | 2,806 | — | 245 | -1.6% |
| Q1 2026 | 2,895 | — | 251 | 2.3% |
| Q2 2026 | 3,043 | 10.2% | 319 | 13.5% |
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