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Diagnostics & Research
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
WGS icon
26
GeneDx Holdings
WGS
$1.95B
$1.95B $65.49 4.38%
PSNL icon
27
Personalis
PSNL
$1.71B
$1.71B $16.02 0.25%
FRNM
28
Freenome Inc
FRNM
$1.44B
$1.44B $13.42 2.91%
OPK icon
29
Opko Health
OPK
$1.21B
$1.21B $1.62 0.62%
CSTL icon
30
Castle Biosciences
CSTL
$1.12B
$1.12B $36.68 6.29%
MYGN icon
31
Myriad Genetics
MYGN
$621M
$621M $6.49 3.18%
FLGT icon
32
Fulgent Genetics
FLGT
$583M
$583M $21.20 2.42%
BDSX icon
33
Biodesix
BDSX
$238M
$238M $22.51 2.55%
XGN icon
34
Exagen
XGN
$203M
$203M $8.40 7.97%
BNR icon
35
Burning Rock Biotech
BNR
$126M
$126M $11.97 0.84%
IMDX icon
36
Insight Molecular Diagnostics
IMDX
$102M
$102M $3.13 0.95%
QUCY icon
37
Quantum Cyber N.V.
QUCY
$83.1M
$83.1M $0.9889 9.26%
PRPO icon
38
Precipio
PRPO
$34.7M
$34.7M $19.37 2.43%
MDXH icon
39
MDxHealth
MDXH
$17.9M
$17.9M $0.1871 5.03%
AMS icon
40
American Shared Hospital Services
AMS
$8.64M
$8.64M $1.30 2.36%
XWEL icon
41
XWELL
XWEL
$7.22M
$7.22M $0.7240 1.52%
NDRA icon
42
ENDRA Life Sciences
NDRA
$7.09M
$7.09M $4.73 4.64%
VNRX icon
43
VolitionRx Ltd
VNRX
$5.39M
$5.39M $0.1794 3.03%
ADVB icon
44
Advanced Biomed Inc
ADVB
$5.01M
$5.01M $3.03 0.33%
ISPC icon
45
iSpecimen
ISPC
$2.18M
$2.18M $0.8646 0.86%
BIAF icon
46
bioAffinity Technologies
BIAF
$1.83M
$1.83M $3.05 3.04%
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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 46 Diagnostics & Research industry stocks tracked by Wall St. Rank, worth a combined $967B.

The largest by market cap are Thermo Fisher Scientific (TMO) at $262B, Danaher (DHR) at $165B and Natera (NTRA) at $62B.

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 116 (24%) quarter-over-quarter.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.