OBMCX holdings — Oberweis Micro-Cap Fund

Oberweis Micro-Cap Fund (OBMCX) held 73 positions with net assets of $1.61B as of June 30, 2026, according to its Form N-PORT report to the SEC. Its top 10 holdings make up 34.9% of the fund, led by SIMO, UCTT, AAOI.

OBMCX top holdings

  1. SIMO Silicon Motion Technology Corp — 6.29% ($102M)
  2. UCTT Ultra Clean Holdings Inc — 5.49% ($88.6M)
  3. AAOI Applied Optoelectronics Inc — 4.85% ($78.3M)
  4. POWL Powell Industries Inc — 3.07% ($49.6M)
  5. DIOD Diodes Inc — 2.71% ($43.7M)
  6. RSI Rush Street Interactive Inc — 2.67% ($43.1M)
  7. BLBD Blue Bird Corp — 2.50% ($40.4M)
  8. CAMT Camtek Ltd/Israel — 2.47% ($39.9M)
  9. MXL MaxLinear Inc — 2.45% ($39.5M)
  10. AMSC American Superconductor Corp — 2.38% ($38.4M)
  11. LIVN LivaNova PLC — 2.28% ($36.8M)
  12. OUST Ouster Inc — 2.05% ($33.0M)
  13. CECO CECO Environmental Corp — 1.94% ($31.4M)
  14. LQDA Liquidia Corp — 1.94% ($31.3M)
  15. PDFS PDF Solutions Inc — 1.81% ($29.2M)
  16. DAVE Dave Inc — 1.76% ($28.4M)
  17. LASR nLight Inc — 1.72% ($27.8M)
  18. ADPT Adaptive Biotechnologies Corp — 1.61% ($26.1M)
  19. AMBA Ambarella Inc — 1.61% ($25.9M)
  20. TPC Tutor Perini Corp — 1.60% ($25.9M)
  21. KNSA Kiniksa Pharmaceuticals Intern — 1.54% ($24.9M)
  22. OMDA Omada Health Inc — 1.38% ($22.2M)
  23. ANIP ANI Pharmaceuticals Inc — 1.31% ($21.2M)
  24. EZPW EZCORP Inc — 1.31% ($21.2M)
  25. DCO Ducommun Inc — 1.26% ($20.3M)

What are OBMCX's top 10 holdings?

SIMO (6.3%), UCTT (5.5%), AAOI (4.9%), POWL (3.1%), DIOD (2.7%), RSI (2.7%), BLBD (2.5%), CAMT (2.5%), MXL (2.4%), AMSC (2.4%).

How many stocks are in OBMCX?

Oberweis Micro-Cap Fund reported 73 holdings as of June 30, 2026.

Share classes: OBMCX, OMCIX

All ETF and mutual fund holdings