Quest Diagnostics Inc splits its revenue into 2 lines in its filings. The largest line in Q3 of fiscal 2026, the quarter ended Sep 30, 2026 was Diagnostic Information Services Business at $3.0 billion, 98% of the total.
USD in millions. The percent under a figure is the change from the same quarter a year earlier.
| Line |
TTM
Sep 30, 2026
|
Q3 FY2026
Sep 30, 2026
|
Q2 FY2026
Jun 30, 2026
|
Q1 FY2026
Mar 31, 2026
|
Q4 FY2025
Dec 31, 2025
|
Q3 FY2025
Sep 30, 2025
|
Q2 FY2025
Jun 30, 2025
|
Q1 FY2025
Mar 31, 2025
|
Q4 FY2024
Dec 31, 2024
|
|---|---|---|---|---|---|---|---|---|---|
| Revenue |
11,841
|
3,097
|
3,043
|
2,895
|
2,806
|
2,816
|
2,761
|
2,652
|
2,621
|
| Diagnostic Information Services Business |
11,587
+9.3%
share 97.9%
|
3,035
+10.2%
share 98.0%
|
2,978
+10.3%
share 97.9%
|
2,832
+9.4%
share 97.8%
|
2,742
+7.3%
share 97.7%
|
2,755
share 97.8%
|
2,699
share 97.8%
|
2,589
share 97.6%
|
2,556
share 97.5%
|
| All Other Segments |
254
+1.2%
share 2.1%
|
62
+1.6%
share 2.0%
|
65
+4.8%
share 2.1%
|
63
+0.0%
share 2.2%
|
64
-1.5%
share 2.3%
|
61
share 2.2%
|
62
share 2.2%
|
63
share 2.4%
|
65
share 2.5%
|
How these figures are calculated
Quarterly columns are single-quarter amounts. When a 10-Q reports only a year-to-date total, as cash flow statements do, the quarter is that total minus the previous quarter's year-to-date total. The fourth quarter is the annual report's full year minus the first nine months. A column marked YTD is a year-to-date total, shown when the earlier report needed for the single quarter is missing. USD in millions. Each group is a separate split of total revenue, so the groups are not added together. Share of revenue is that line divided by total revenue. The first column adds the latest year-to-date segment amount to the last fiscal year and subtracts the year-ago year-to-date amount. More on our methodology.
Company profile
- Industry
- Services-Medical Laboratories (SIC 8071)
- Listed as
- DGX (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Secaucus, NJ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1022079
- Former names
- CORNING CLINICAL LABORATORIES INC (until Mar 19, 1997)
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- GRAIL, Inc. GRAL
- RadNet, Inc. RDNT
- BillionToOne, Inc. BLLN
- CareDx, Inc. CDNA
Source: SEC EDGAR filings. This is company-reported data, not investment advice.