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Micro Cap
Diagnostics & Research
Stocks Ranked by
Market Capitalization

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Micro 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 13 micro cap Diagnostics & Research stocks — companies in the Diagnostics & Research industry with a market cap under $250M — worth a combined $793M.

The largest by market cap are Exagen (XGN) at $212M, Burning Rock Biotech (BNR) at $190M and Insight Molecular Diagnostics (IMDX) at $129M.

Among institutional investors, bioAffinity Technologies (BIAF) drew the most net new fund positions in Q2 2026: 10 funds opened new positions, taking total fund holders up 7 (58%) quarter-over-quarter.

  • Combined market cap: $793M across 13 stocks.
  • Micro Cap: market cap under $250M.
  • Largest constituent: Exagen (XGN), $212M market cap.
  • Most net new fund positions in Q2 2026: bioAffinity Technologies (BIAF), +7 holders.

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