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Mid Cap
Diagnostics & Research
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
TWST icon
1
Twist Bioscience
TWST
$9.5B
$9.5B $151.42 7.54%
QGEN icon
2
Qiagen
QGEN
$9.01B
$9.01B $43.65 4.48%
RDNT icon
3
RadNet
RDNT
$6.05B
$6.05B $76.86 2.91%
SHC icon
4
Sotera Health
SHC
$5.57B
$5.57B $19.51 1.77%
BLLN
5
BillionToOne Inc
BLLN
$4.72B
$4.72B $100.08 3.45%
ADPT icon
6
Adaptive Biotechnologies
ADPT
$4.19B
$4.19B $26.25 2.74%
GRAL
7
GRAIL Inc
GRAL
$3.69B
$3.69B $82.54 7.78%
VCYT icon
8
Veracyte
VCYT
$3.54B
$3.54B $44.04 6.2%
CDNA icon
9
CareDx
CDNA
$2.63B
$2.63B $50.80 6.95%
WGS icon
10
GeneDx Holdings
WGS
$2.61B
$2.61B $87.41 2.61%
NEO icon
11
NeoGenomics
NEO
$2.16B
$2.16B $16.79 2.32%

Mid 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 11 mid cap Diagnostics & Research stocks — companies in the Diagnostics & Research industry with a market cap between $2B and $10B — worth a combined $53.7B.

The largest by market cap are Twist Bioscience (TWST) at $9.5B, Qiagen (QGEN) at $9.01B and RadNet (RDNT) at $6.05B.

Among institutional investors, BillionToOne Inc (BLLN) drew the most net new fund positions in Q2 2026: 77 funds opened new positions, taking total fund holders up 66 (73%) quarter-over-quarter.

  • Combined market cap: $53.7B across 11 stocks.
  • Mid Cap: market cap between $2B and $10B.
  • Largest constituent: Twist Bioscience (TWST), $9.5B market cap.
  • Most net new fund positions in Q2 2026: BillionToOne Inc (BLLN), +66 holders.

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