Large Cap
Diagnostics & Research
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Danaher
DHR
$161B
| $161B | $229.04 | 1.06% |
|
2
Natera
NTRA
$56.7B
| $56.7B | $393.44 | 2.8% |
|
3
Agilent Technologies
A
$48.8B
| $48.8B | $172.97 | 1.47% |
|
4
Idexx Laboratories
IDXX
$44.1B
| $44.1B | $560.36 | 2.41% |
|
5
IQVIA
IQV
$43.9B
| $43.9B | $266.90 | 1.53% |
|
6
Waters Corp
WAT
$42.9B
| $42.9B | $436.95 | 1.62% |
|
7
Illumina
ILMN
$39.6B
| $39.6B | $262.54 | 2.01% |
|
8
Mettler-Toledo International
MTD
$32.5B
| $32.5B | $1,622.29 | 1.02% |
|
9
Quest Diagnostics
DGX
$25.9B
| $25.9B | $235 | 1.74% |
|
10
Labcorp
LH
$25.8B
| $25.8B | $317.95 | 2.19% |
|
11
Guardant Health
GH
$21.3B
| $21.3B | $158.60 | 4.39% |
|
12
Medpace
MEDP
$17.3B
| $17.3B | $618.47 | 1.61% |
|
13
Revvity
RVTY
$17B
| $17B | $152.64 | 1.34% |
|
14
Charles River Laboratories
CRL
$14.3B
| $14.3B | $300.15 | 1.99% |
|
15
Icon
ICLR
$13.1B
| $13.1B | $170.18 | 2.83% |
|
Large Cap Diagnostics & Research Stocks at a Glance
Diagnostics and research companies run laboratory testing, imaging, and analytical services, and supply the instruments behind them. Testing volumes are recurring and largely non-discretionary, while research-tools demand follows pharma and academic R&D budgets.
There are 15 large cap Diagnostics & Research stocks — companies in the Diagnostics & Research industry with a market cap between $10B and $200B — worth a combined $604B.
The largest by market cap are Danaher (DHR) at $161B, Natera (NTRA) at $56.7B and Agilent Technologies (A) at $48.8B.
Among institutional investors, Guardant Health (GH) drew the most net new fund positions in Q2 2026: 161 funds opened new positions, taking total fund holders up 115 (24%) quarter-over-quarter.
- Combined market cap: $604B across 15 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Danaher (DHR), $161B market cap.
- Most net new fund positions in Q2 2026: Guardant Health (GH), +115 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.