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Buffett on the KOSPI

This ranking weighs ROE ×4, Gross margin ×3, and nothing else, across the 20 companies we track on the KOSPI. 3 of them clear Buffett’s hard limits right now, and 4 cannot be judged because a required figure is missing.

Ranked highest by Buffett on this market right now, which is not the same list as the one that clears the limits above:

  1. SK Hynix (000660.KS) · Technology · ROE 354% · Gross margin 76%
  2. Samsung Electronics (005930.KS) · Technology · ROE 31% · Gross margin 57%
  3. Samsung Biologics (207940.KS) · Healthcare · ROE 19% · Gross margin 54%
  4. Celltrion (068270.KS) · Healthcare · ROE 9% · Gross margin 62%
  5. Kia (000270.KS) · Consumer Cyclical · ROE 12% · Gross margin 19%

From data as of 2026-09-11 01:00:55 UTC. Rebuilt every hour; the table above is live.

All 20 companies on the KOSPI, ranked by Buffett, as text
  1. SK Hynix (000660.KS) · ROE 354% · Gross margin 76%
  2. Samsung Electronics (005930.KS) · ROE 31% · Gross margin 57%
  3. Samsung Biologics (207940.KS) · ROE 19% · Gross margin 54%
  4. Celltrion (068270.KS) · ROE 9% · Gross margin 62%
  5. Kia (000270.KS) · ROE 12% · Gross margin 19%
  6. KB Financial (105560.KS) · ROE 10%
  7. SK Inc (034730.KS) · ROE 29% · Gross margin 13%
  8. Hana Financial (086790.KS) · ROE 9%
  9. Shinhan Financial (055550.KS) · ROE 9%
  10. Kakao (035720.KS) · ROE 4% · Gross margin 93%
  11. SK Telecom (017670.KS) · ROE 5% · Gross margin 70%
  12. Naver (035420.KS) · ROE 6%
  13. Samsung C&T (028260.KS) · ROE 6% · Gross margin 19%
  14. Hyundai Motor (005380.KS) · ROE 7% · Gross margin 17%
  15. LG Electronics (066570.KS) · ROE 5% · Gross margin 24%
  16. Hyundai Mobis (012330.KS) · ROE 7% · Gross margin 15%
  17. Samsung Life (032830.KS) · ROE 3% · Gross margin 44%
  18. LG Corp (003550.KS) · ROE 3% · Gross margin 19%
  19. LG Chem (051910.KS) · ROE -6% · Gross margin 17%
  20. POSCO Holdings (005490.KS) · ROE 2% · Gross margin 8%