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000660 - SK hynix Inc.

000660 Summary
Semiconductors
Stock Price & Overview
₩1,678,000 +7,000 (+0.42%) Close · Aug 25, 2026 KST
KOSPI | ₩KRW | Close: ₩1,678,000  ≈ US$1,199  ·  Market cap ₩1,225.8tn (≈ $875.5bn)
Every name gets a line. A US reader knows who AMD and Broadcom are. Almost nobody outside Korea knows what these companies make — so the table says so, in the row.

000660 Peer Comparison

CompanyPrice1DMarket capSector
SK hynix Inc. 000660
SK hynix designs and manufactures memory semiconductors — DRAM, NAND flash and, since 2023, high-bandwidth memory (HBM) stacks used in AI accelerators.
₩1,678,000+0.4%₩1,225.8tnSemiconductors
Samsung Electronics Co., Ltd. 005930———Semiconductors
Hanmi Semiconductor Co., Ltd. 042700
Hanmi Semiconductor makes the thermo-compression bonders used to stack HBM dies.
₩217,500+4.1%₩20.7tnSemiconductors
Leeno Industrial Inc. 058470
Leeno Industrial makes test probes and sockets used to test memory and logic chips.
₩67,400+4.3%₩5.1tnSemiconductors
Wonik IPS Co., Ltd. 240810
Wonik IPS builds deposition and etch equipment for memory fabs.
₩112,300+5.5%₩5.5tnSemiconductors
Peers are companies kstock already covers in the same sector — the list grows as coverage does.

Similar to 000660

SymbolLast Price
005930Samsung Electronics Co., Ltd.—
042700Hanmi Semiconductor Co., Ltd.₩217,500
+4.1%
058470Leeno Industrial Inc.₩67,400
+4.3%
240810Wonik IPS Co., Ltd.₩112,300
+5.5%
Compare

What a US investor should know

  • Trading hours09:00–15:30 KST — 20:00–02:30 US Eastern the night before.
  • Daily limitKorean stocks can move at most ±30% in a session before trading halts.
  • Getting exposureKRX shares are not directly tradable in most US brokerage accounts. The usual routes are Korea ETFs or an international account.
  • ReportingKorean issuers file to DART, not the SEC. Half-year and quarterly reports land about 45 days after period end.