Quest Diagnostics Inc (DGX) (Q3 2026) Earnings Call Highlights: Double-Digit Revenue
Quest Diagnostics (DGX) reported Q3 2026 earnings with double-digit revenue growth, but faces challenges. PAMA reimbursement cuts may impact 2027 revenues by 1%. Total revenue per requisition declined 4.2% due to business mix, though it rose 1.7% excluding certain relationships. The company also reported a cybersecurity incident and higher fuel costs. CEO Jim Davis and CFO Sam Samad discussed growth strategies, partnerships, and margin improvements.
How this was made

The 30-second read
Why it matters
The earnings release provides fresh guidance on PAMA impact and margin trends, offering traders new data to adjust forecasts.
Market read
Earnings data introduces new quantitative guidance on reimbursement headwinds and margin improvement, relevant for healthcare and diagnostics investors.
What to watch
Potential upside from Apple Health partnership rollout and Nova investment ramp‑up later in 2027.
Background
Quest Diagnostics reported Q3 results with revenue per requisition decline, PAMA reimbursement cuts, and a cybersecurity incident that has not disrupted operations.
Ticker impact
Q3 2026 earnings call disclosed double‑digit revenue growth, PAMA reimbursement cuts, a cybersecurity incident, and margin improvement details.
likely modest downside pressure from PAMA cuts and cyber risk, tempered by margin improvement and volume growth
Guidance shows 1% revenue headwind from PAMA and a 10‑20 bps revenue drag in Q4, but operating margin rose 20 bps and volume grew 5% organic, suggesting limited net impact.
Market effects
Lab diagnostics sector may see modest pressure from Medicare PAMA adjustments, but firms with strong volume leverage could outperform.
U.S. healthcare services market; limited broader regional effect.
Low; impact confined to U.S. diagnostics and related payer policies.
Counterpoint
Investors could view the cybersecurity incident as a catalyst for a short‑term pullback despite margin gains.
Key entities
- companyQuest Diagnostics Inc
Provider of diagnostic testing services, ticker DGX.
- partnerApple Health
Integration partner for consumer test ordering.


