Quest Diagnostics Q3 Revenue Rises 10%; Raises 2026 Guidance
Quest Diagnostics reported Q3 2026 revenue of $3.097B, up 10% YoY, and adjusted EPS of $3.00, up 15.4%. The company raised its 2026 guidance, expecting revenue between $12.065B and $12.105B and adjusted EPS between $11.25 and $11.35. Growth was driven by increased requisition volume across multiple channels, and the company announced new partnerships and product expansions.
How this was made

The 30-second read
Why it matters
The earnings beat and guidance raise are likely to drive short‑term buying interest.
Market read
Fresh earnings and guidance lift provide a clear trading catalyst for DGX.
What to watch
Potential headwinds from reimbursement policy changes or competitive pressure from emerging lab‑testing platforms.
Background
Quest Diagnostics filed an 8‑K on Oct 22, 2026 announcing Q3 results and updated 2026 guidance.
Ticker impact
Quest Diagnostics reported Q3 2026 revenue up 10% YoY and raised full-year 2026 revenue and EPS guidance.
likely upward pressure as investors price in higher guidance
Earnings beat and guidance lift are fresh, material information for a large-cap health services firm.
Market effects
May boost sentiment for the broader health diagnostics sector.
Positive for U.S. healthcare services equities.
Limited to investors tracking U.S. health‑care earnings.
Counterpoint
If guidance is overly optimistic, a pullback could follow once detailed forecasts are released.
Key entities
- companyQuest Diagnostics Inc.
U.S. health diagnostics provider.




