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Diagnostics & Research
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
WGS icon
26
GeneDx Holdings
WGS
$1.89B
$1.89B $63.69 2.93%
CDNA icon
27
CareDx
CDNA
$1.83B
$1.83B $35.41 0.95%
PSNL icon
28
Personalis
PSNL
$1.25B
$1.25B $11.73 1.26%
FRNM
29
Freenome, Inc. Common stock
FRNM
$1.07B
$1.07B $10.06 6.59%
OPK icon
30
Opko Health
OPK
$1.02B
$1.02B $1.36 17.6%
CSTL icon
31
Castle Biosciences
CSTL
$742M
$742M $24.46 2.39%
FLGT icon
32
Fulgent Genetics
FLGT
$558M
$558M $19.64 0.05%
MYGN icon
33
Myriad Genetics
MYGN
$476M
$476M $5.04 5.26%
BDSX icon
34
Biodesix
BDSX
$211M
$211M $20.38 3.09%
IMDX
35
Insight Molecular Diagnostics
IMDX
$141M
$141M $4.37 5.21%
XGN icon
36
Exagen
XGN
$105M
$105M $4.35 2.25%
BNR
37
Burning Rock Biotech
BNR
$93M
$93M $8.82 4.03%
PRPO icon
38
Precipio
PRPO
$39.1M
$39.1M $21.85 3.62%
QUCY
39
Quantum Cyber N.V.
QUCY
$24.1M
$24.1M $1.06 2.75%
MDXH icon
40
MDxHealth
MDXH
$20.6M
$20.6M $0.4002 2.63%
ADVB
41
Advanced Biomed Inc
ADVB
$18.1M
$18.1M $10.98 0.92%
AMS icon
42
American Shared Hospital Services
AMS
$10.1M
$10.1M $1.53 3.16%
VNRX icon
43
VolitionRx Ltd
VNRX
$9.31M
$9.31M $0.7726 9.24%
XWEL icon
44
XWELL
XWEL
$8.95M
$8.95M $1.06 0.95%
MBAI
45
Check-Cap
MBAI
$8.04M
$8.04M $1.04 0.95%
NDRA icon
46
ENDRA Life Sciences
NDRA
$5.65M
$5.65M $4.45 0.22%
BIAF icon
47
bioAffinity Technologies
BIAF
$3.68M
$3.68M $0.5850 6.91%
ISPC icon
48
iSpecimen
ISPC
$2.73M
$2.73M $1.90 0.53%
HLTH
49
Tema Healthcare AI ETF
HLTH
$1.02M
$1.02M $25.41 0.59%
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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 49 Diagnostics & Research industry stocks tracked by Wall St. Rank, worth a combined $785B.

The largest by market cap are Thermo Fisher Scientific (TMO) at $214B, Danaher (DHR) at $138B and Idexx Laboratories (IDXX) at $44.9B.

Among institutional investors, Waters Corp (WAT) drew the most net new fund positions in Q1 2026: 461 funds opened new positions, taking total fund holders up 365 (45%) quarter-over-quarter.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q1 2026.