Quest Diagnostics Reports Third Quarter 2026 Financial Results; Raises Revenue and EPS Guidance for Full Year 2026
Quest Diagnostics reported Q3 2026 revenue of $3.10B, up 10% YoY, and adjusted EPS of $3.00, up 15.4%. The company raised full-year 2026 revenue guidance to $12.065B-$12.105B and adjusted EPS to $11.25-$11.35. Growth was driven by strong organic performance and strategic initiatives. Quest also announced partnerships and product expansions in diagnostics and healthcare.
How this was made

The 30-second read
Why it matters
The guidance upgrade is likely to be viewed as a beat, supporting a bullish reaction in the stock.
Market read
First‑report earnings and guidance lift for a large‑cap health‑services firm; actionable for traders.
What to watch
Potential regulatory or reimbursement risks not addressed in the release.
Background
Quest Diagnostics announced Q3 2026 results and raised its full‑year guidance, highlighting organic growth, new test panels, and strategic acquisitions.
Ticker impact
Quest Diagnostics raised full-year 2026 revenue to $12.065‑$12.105 B and EPS to $10.21‑$10.31, a fresh upward guidance update.
upward pressure as the market prices in higher revenue and earnings expectations
The guidance increase is material for a large‑cap health‑services firm and is the first public disclosure of these numbers.
Market effects
Positive outlook may lift other diagnostic and health‑services peers.
U.S. healthcare sector could see modest gains.
Limited to U.S. markets; no direct global effect.
Counterpoint
If guidance already priced in, the stock could face a short‑term pull‑back.
Key entities
- companyQuest Diagnostics
Diagnostic information services provider (NYSE: DGX).




