SK Hynix (000660)
The world's second-largest memory-chip maker and the leader in high-bandwidth memory (HBM) for AI accelerators, with Nvidia as a key customer. Part of South Korea's SK Group.
- Legal name
- SK hynix Inc.
- Ticker
- 000660
- Exchange
- Korea Exchange · MIC XKRX
- Country
- South Korea
- Sector
- Technology
- Industry
- Memory semiconductors (DRAM, NAND, HBM)
- Market cap ≈
- $878.5bn — computed, not copied: 0.730bn shares × 1653000 KRW close on 2026-08-28
- Reporting currency
- KRW
- Founded
- 1983
- Website
- www.skhynix.com
- LEI
- 988400XAIK6XISWQV045 (GLEIF)
- ISIN
- KR7000660001 (check digit validated)
- FIGI
- BBG001S90F76 (share class, OpenFIGI)
Graph connections view in graph →
lists_onKorea Exchange
domiciled_inSouth Korea
Sector peers — Technology
Compare: 000660 vs AAPL · 000660 vs MSFT · 000660 vs NVDA
How this market cap is arrived at
| Shares outstanding | 730,492,365 |
| Basis | outstanding |
| As of | 2026-08-19 |
| Source | SK hynix Form 6-K "Decision on Cancellation of Treasury Shares", furnished 2026-08-19, states "2. Total... |
| Price | 1653000 KRW · 000660.KS · close 2026-08-28 |
| Venue | KSE |
| Converted at | ECB euro reference rates, 2026-08-28 |
| Market cap | $878.5bn |
ADR ratio is A fraction: each Nasdaq ADS (skhy, Citibank N.A. depositary) represents one-tenth of a common share, so adr_ratio = 0.1 - multiplying an ADS price by 1/2/5/10 is the classic error here. The ADS IPO priced 2026-07-10 at US$149.00 per ADS (= US$1,490 per common share) and issued 17,790,000 NEW common shares, so any count taken before July 2026 (712,702,365 or the older 728,002,365 line) is too low. No over-allotment option was granted (Korean law).
Share counts move on a filing cadence, prices move continuously — so this figure is exact only as of the two dates above, and we publish both rather than a single undated number. This company is quoted here through a depositary receipt (SKHY), where one receipt represents 0.1 ordinary shares; the price is put on an ordinary-share basis before it meets the share count. Provenance.
Identifier crosswalk
| Standard | Value | What it answers |
|---|---|---|
| Ticker | 000660 | Venue-local shorthand — ambiguous across markets |
| MIC | XKRX | ISO 10383 — the venue |
| ISIN | KR7000660001 | ISO 6166 — the security |
| LEI | 988400XAIK6XISWQV045 | ISO 17442 — the legal entity |
| FIGI | BBG001S90F76 | OpenFIGI — instrument, share class |
5 naming systems for one entity — only codes we actually hold are listed, with no gaps filled by guessing. Sources: LEI from GLEIF (CC0), ISIN read from the issuer's own primary listing document, with its ISO 6166 check digit validated, FIGI from OpenFIGI (open standard), MIC from the ISO 10383 registry. Each linked code opens its reverse-lookup page; the validator checks any code's check digit. seed-0.7 · marketcap-1 · 2026-08-30.
Approximate reference values from public sources · seed-0.7 · marketcap-1 · 2026-08-30 · not real-time. See data & methodology.
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