Company:SK Hynix

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SK Hynix Inc.
Native name
에스케이하이닉스 주식회사
Formerly
  • Hyundai Electronics (1983–2001)
  • Hynix (2001–2012)
TypePublic
Short description: Securities exchange operator in South Korea
Korea Exchange
한국거래소
File:150px
TypeStock exchange
LocationBusan & Seoul, South Korea
Coordinates [ ⚑ ] 35°08′12″N 129°03′53″E / 35.136721°N 129.064746°E / 35.136721; 129.064746 (Busan)
Founded1956; 70 years ago (1956)
Key peopleSohn Byung-doo
(Chairman & CEO)
CurrencySouth Korean won
No. of listings2,901 (as of January 2026)[1]
Market cap₩4,277 trillion KRW ($2.95 trillion USD)[2]
IndicesKOSPI
KOSPI 200
KOSDAQ
Websitewww.krx.co.kr
global.krx.co.kr

Template:Infobox Korean name/auto Korea Exchange (KRX, Korean한국거래소) is the sole securities exchange operator in South Korea. It is headquartered in Busan, and has an office for cash markets and market oversight in Seoul.

History

The Korea Exchange was created through the integration of Korea Stock Exchange (KSE), Korea Futures Exchange and KOSDAQ Stock Market under the Korea Stock & Futures Exchange Act. The securities and derivatives markets of former exchanges are now business divisions of Korea Exchange: the Stock Market Division, KOSDAQ Market Division and Derivatives Market Division. As of December 2020, Korea Exchange had 2,409 listed companies with a combined market capitalization of ₩2.3 quadrillion KRW (US$2.1 trillion). The exchange has normal trading sessions from 09:00 am to 03:30 pm on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.[3]

On 22 May 2015, the Korea Exchange joined the United Nations Sustainable Stock Exchanges initiative in an event with the UN-SG Ban Ki-moon in attendance, as well as senior officials from UN Global Compact and UNCTAD.[4]

On 10 April 2025, the KOSPI and KOSDAQ soared when President Donald Trump announced that he would suspend the mutual tariffs. In response, the Korea Exchange triggered a buy sidecar for the KOSPI market at 09:06 a.m. for the first time in eight months.[5]

In April 2025, the Korea Exchange signed a contract with the Thai Stock Exchange to supply the system for liquidation and settlement. A source at the exchange said it expects the deal to further strengthen the position of the Korean stock market infrastructure in Southeast Asia.[6]

Traded instruments

KOSPI Market Division
  • Stocks
  • Bonds
  • Exchange-traded funds (ETFs)
  • Exchange-Linked Warrants (ELWs)
  • Real estate investment trusts (REITs)
KOSDAQ Market Division
  • Stocks
Derivatives Market Division
  • Index Instruments: KOSPI 200 Index Futures, KOSTAR Futures, KOSPI 200 Index Options
  • Single Stock Futures
  • Equity Options
  • Interest Rate Instruments: 3-Year KTB (Korea Treasury Bond) Futures, 5-Year KTB Futures, 10-Year KTB Futures
  • Foreign Exchange Instruments: USD Futures, JPY Futures, EUR Futures, USD Options
  • Commodity Instruments: Gold Futures, Mini-gold Futures, Lean Hog Futures

Trading hours

Session Trading Hours Quotation Receiving Hours
Regular Session 09:00 ~ 15:30 08:30 ~ 15:30
Off-hours Session Pre-hours 08:00 ~ 09:00 08:00 ~ 09:00
Off-hours Session Post-hours 15:40 ~ 18:00 15:30 ~ 18:00

Quotations are quotes submitted by the Members on behalf of their customers and are submitted to the Exchange only during Quotation Receiving Hours.

Trading days in KRX KOSPI markets are from Monday through Friday and no trading or settlement is made on the following days:[7]

  • Holidays according to government regulations (which includes Sundays, National Election days, etc)
  • Labor Day (May 1st)
  • Saturdays
  • December 31st when it's a holiday or a Saturday, otherwise the previous business day closest to December 31st
  • Certain days deemed necessary by the KRX due to market conditions.

See also

References

Template:Stock exchanges top 18 Template:Economy of South Korea


IndustrySemiconductor
Founded15 October 1949; 76 years ago (1949-10-15) (legal)
26 February 1983; 43 years ago (1983-02-26) (actual)
FounderChung Ju-yung
Headquarters
Icheon
,
South Korea
ProductsDRAM, NAND flash
RevenueIncrease ₩66.19 trillion (2024)
Increase ₩23.47 trillion (2024)
Increase ₩19.80 trillion (2024)
Total assetsIncrease ₩119.86 trillion (2024)
Total equityIncrease ₩73.92 trillion (2024)
Number of employees
46,863 (2024)
ParentHyundai Group (1983-2003)
SK Group (2003-present)
Websiteskhynix.com
Footnotes / references
[1]

SK Hynix Inc. (Korean: 에스케이하이닉스 주식회사), stylized SK hynix, is a South Korean semiconductor company that manufactures dynamic random-access memory (DRAM) chips and flash memory chips. SK Hynix is one of the world's largest semiconductor vendors,[2][3] and along with Samsung Electronics is one of the "Big Two" memory manufacturers.[4]

Founded in 1983 as Hyundai Electronics, SK Hynix was integrated into the SK Group in 2012 following a series of mergers, acquisitions, and restructuring efforts. After being incorporated into the SK Group, SK Hynix became a major affiliate alongside SK Innovation and SK Telecom.[5]

The company's major customers include Microsoft, Apple,[6] Asus, Dell, MSI, HP Inc., and Hewlett Packard Enterprise (formerly Hewlett-Packard).[2] Other products that use Hynix memory include DVD players, cellular phones, set-top boxes, personal digital assistants, networking equipment, and hard disk drives.[7]

History

Beginning

Hyundai Electronics

A Hyundai SRAM in a Seagate Hard Drive (ST351A-X)


Hyundai's approach to manufacturing memory chips as a foundry for foreign firms under OEM agreements was successful. The OEM agreements between General Instruments and Texas Instruments were helpful to Hyundai, which was facing technological and financial difficulties. By 1992, Hyundai had become the world's ninth DRAM manufacturer, and by 1995, it ranked among the world's top 20 semiconductor manufacturing companies. In 1996, Hyundai acquired Maxtor, a U.S.-based disk-drive manufacturer.[8][9][10]

LG Semicon

LG Semiconductor 3DMAX-A (8 MB) video card

GoldStar, which later became LG Electronics, entered the semiconductor business by acquiring a small company from Taihan Electric Wire in 1979. The company was subsequently renamed GoldStar Semiconductor. LG Semicon was established as Goldstar Electron in 1983 by merging the semiconductor operations of Goldstar Electronics and Goldstar Semiconductors. In 1990, Goldstar Electron commenced operations at Cheongju Plant I, followed by the completion of Cheongju Plant II in 1994. The company underwent a name change to LG Semicon in 1995. LG Semicon operated from three sites, including Seoul, Cheongju, and Gumi.[11][9]

Merger

During the 1997 Asian financial crisis, the South Korean government initiated the restructuring of the nation's five major conglomerates, including their semiconductor businesses. Among five chaebols, Samsung, LG, and Hyundai were engaged in the semiconductor business. Samsung was exempt from the restructuring due to its competitive position in the global market. However, LG and Hyundai were pressured by the government to merge, as both companies faced significant losses during the semiconductor recession of early 1996. In 1998, Hyundai Electronics acquired LG Semicon for US$2.1 billion, positioning itself in direct competition with Micron Technology. Subsequently, LG Semicon was rebranded as Hyundai Semiconductor and later merged with Hyundai Electronics.[12][13][14]

Hynix

A 512 MB DDR 333 MHz SO-DIMM Hynix memory module

Template:Pic Although the South Korean government aimed to merge the two companies to alleviate the supply glut in the global market, competition in the semiconductor industry had intensified. Hyundai faced near collapse during the chip industry's downturn in 2001, when global memory chip prices dropped by 80 percent, resulting in a 5 trillion won annual loss for the company. Creditor banks, many of them under government control at the time, intervened to provide assistance.[15]

In 2001, Hyundai Electronics rebranded as Hynix Semiconductor, a portmanteau of "high" and "electronics".[16][17] Alongside this change, Hynix began selling or spinning off business units to recover from a cash squeeze.[16] Hynix separated several business units, including Hyundai Curitel, a mobile phone manufacturer;[18] Hyundai SysComm, a CDMA mobile communication chip maker;[19] Hyundai Autonet, a car navigation system producer;[20] ImageQuest, a flat panel display company;[21] and its TFT-LCD unit,[22] among others. The divestiture was part of a bailout plan requested by the major creditor, Korea Development Bank, to provide fresh funds to the insolvent semiconductor maker.[23]

In 2003, Hyundai Group affiliates, including Hyundai Merchant Marine, Hyundai Heavy Industries, Hyundai Elevator, and Chung Mong-hun, the chairman of Hyundai Asan, consented to forfeit their voting rights and sell their stakes in Hynix.[24] Hynix was then formally spun-off from the Hyundai Group in August 2003.[25]

SK Hynix

An SK Hynix SDRAM in an Apple MacBook Pro

The Hynix creditors, including Korea Exchange Bank, Woori Bank, Shinhan Bank and Korea Finance Corporation, attempted to sell their stake in Hynix several times but failed.[26][27][28] Korean companies such as Hyosung, Dongbu CNI, and former stakeholders, including Hyundai Heavy Industries and LG, were considered potential bidders but were either denied or withdrew from the bidding.[29] In July 2011, SK Telecom, the nation's largest telecommunication company, and STX Group officially entered the bid.[30] STX dropped its deal in September 2011, leaving SK Telecom as the sole bidder. In the end, SK acquired Hynix for US$3 billion in February 2012.[31][32][33] As Hynix was incorporated into SK Group, its name was changed to SK Hynix.[34]

In 2021, Hynix acquired Intel's NAND business for $9 billion, resulting in the establishment of Solidigm.[35][36][37]

On September 26, 2024, SK Hynix said it has begun mass production of 12-layer high bandwidth memory (HBM) chips, the first in the world.[38][39] As of Q2 2025, SK Hynix controlled 38% of the global DRAM market.[40]

Corporate governance

As of December 2023

Shareholder Stake (%) Flag
SK Square 20.07%
National Pension Service 7.90%

Financials

The key trends for SK Hynixs are (as of the financial year ending 31 December):

Revenue
(USD billion)[41]
EBIT
(USD billion)[42]
Total Assets
(USD billion)[42]
Total Equity
(USD billion)[42]
Market cap
(USD billion)[43]
2015 16.41 4.72 25.24 18.19 18.46
2016 14.92 2.86 26.72 19.92 26.18
2017 27.03 12.17 42.60 31.72 50.49
2018 36.72 19.45 57.02 41.97 37.07
2019 23.24 2.32 56.42 41.45 55.66
2020 27.41 5.63 65.51 47.77 74.60
2021 37.04 11.70 80.97 52.26 75.70
2022 34.44 3.44 82.37 50.19 40.65
2023 24.89 -7.75 77.56 41.36 77.40
2024 47.96 18.16 81.67 50.37 81.73

Operations

SK Hynix has production facilities in Icheon and Cheongju, South Korea, and in Wuxi, Chongqing and Dalian, China.[44]

Products

Hynix produces a variety of semiconductor memories, including:

See also

References

  1. "Annual Report". Financial Supervisory Service. December 31, 2023. https://opendart.fss.or.kr/xbrl/viewer/main.do?rcpNo=20240319000684&lang=en. 
  2. 2.0 2.1 Lee, Youkyung (26 July 2012). "SK Hynix sinks to loss on oversupply, weak demand". Seoul, South Korea. http://bigstory.ap.org/article/sk-hynix-sinks-loss-oversupply-weak-demand. 
  3. "Gartner Says Worldwide Semiconductor Revenue Grew 1.1% in 2022". Gartner. 2023-01-17. https://www.gartner.com/en/newsroom/press-releases/2024-01-16-gartner-says-worldwide-semiconductor-revenue-declined-11-percent-in-2023. 
  4. Morales, Jowi (30 January 2026). "Big three memory chip manufacturers policing customers to prevent hoarding — employee says industry relationships ‘matter in a crunch’" (in en). https://www.tomshardware.com/pc-components/dram/big-three-memory-chip-manufacturers-policing-customers-to-prevent-hoarding-employee-says-industry-relationships-matter-in-a-crunch. 
  5. Seo, Jee-yeon (December 9, 2014). "SK appoints young CEOs". The Korea Herald. https://www.koreaherald.com/view.php?ud=20141209000954. 
  6. By Paul Briden, Know Your Mobile. "iPhone SE One Week Later: "Adoption Has Been Low"." 8 April 2016.
  7. "Analysis of SK hynix". Dublin: Research and Markets. http://www.researchandmarkets.com/research/nbf3kk/analysis_of_sk. 
  8. "The Korean system of innovation and the semiconductor industry:a governance perspective". http://www.oecd.org/korea/2098646.pdf. 
  9. 9.0 9.1 Kim, Dong-won (September 29, 2023). Making a Semiconductor Superpower. CRC Press. ISBN 9781000936087. 
  10. "Maxtor Drives Hard". Forbes. November 21, 2001. https://www.forbes.com/2001/11/21/1121maxtor.html?sh=116243b3cf53. 
  11. Pecht, Mike (July 24, 2020). The Korean Electronics Industry. CRC Press. ISBN 9781000154023. 
  12. Robertson, Jack (September 24, 1998). "Hyundai And LG Semicon To Merge Chip Ops". EE Times. https://www.eetimes.com/hyundai-and-lg-semicon-to-merge-chip-ops/. 
  13. Journal, Hae Won ChoiStaff Reporter of The Wall Street (16 March 1999). "LG Semicon Sale Is Seen Helping LG Electronics". The Wall Street Journal. https://www.wsj.com/articles/SB921519779406968101. 
  14. "Hyundai And LG Semicon To Merge Chip Ops". 24 September 1998. https://www.eetimes.com/hyundai-and-lg-semicon-to-merge-chip-ops/. 
  15. Choe, Sang-Hun (September 2, 2005). "Hynix has become a comeback darling". The New York Times (Seoul). https://www.nytimes.com/2005/09/02/technology/hynix-has-becomea-comeback-darling.html. 
  16. 16.0 16.1 "Hyundai Electronics to Be Renamed Hynix". The New York Times. March 9, 2001. https://www.nytimes.com/2001/03/09/business/hyundai-electronics-to-be-renamed-hynix.html. 
  17. McCarthy, Kieren (8 March 2001). "Hyundai renames and dumps everything but chip business". https://www.theregister.com/2001/03/08/hyundai_renames_and_dumps_everything/. 
  18. Moon, So-young (October 23, 2003). "Local buyouts burdened". Korea Joongang Daily. https://koreajoongangdaily.joins.com/2003/10/23/economy/Local-buyouts-burdened/2049631.html. 
  19. Robertson, Jack (January 23, 2022). "Hynix to sell holding in CDMA company for $44.7 million". EE Times. https://www.eetimes.com/hynix-to-sell-holding-in-cdma-company-for-44-7-million/. 
  20. LaPedus, Mark (October 13, 2005). "Hynix profits up 115% in Q3". EE Times (San Jose). https://www.eetimes.com/hynix-profits-up-115-in-q3/. 
  21. "Hynix to sell shares in flat panel display company". EE Times. February 5, 2003. https://www.eetimes.com/hynix-to-sell-shares-in-flat-panel-display-company/. 
  22. LaPedus, Mark (May 25, 2005). "BOE propels China into large-screen LCD market". EE Times (San Jose). https://www.eetimes.com/boe-propels-china-into-large-screen-lcd-market/. 
  23. Jong, Sonu (August 29, 2001). "Korea Development Bank Balks at New Funds for Hynix". The Chosun Ilbo. https://www.chosun.com/english/industry-en/2001/08/29/IIITQMCT4DVWS2OLLYOZZ73GG4/. 
  24. Kim, Won-bae (January 5, 2003). "Chung, Affiliates to Bow Out To Ease Separation of Hynix". Korea JoongAng Daily. https://koreajoongangdaily.joins.com/2003/01/05/finance/Chung-Affiliates-to-Bow-Out-To-Ease-Separation-of-Hynix/1889290.html. 
  25. Rhee, So-Eui (July 31, 2001). "Hynix Says Government Has Cleared Its Separation From Parent Hyundai". The Wall Street Journal (Seoul). https://www.wsj.com/articles/SB996570688303915050. 
  26. "UPDATE 1-Hynix stake up for sale in auction again in Dec". Reuters. 25 November 2009. https://www.reuters.com/article/hynix-sale-idUSSEO35728720091125. 
  27. Park, Ju-Min (June 21, 2011). "S.Korea's Hynix shareholders in 3rd attempt to find buyer". Reuters (Seoul). https://www.reuters.com/article/idUSL3E7HL092/. 
  28. Lee, Se Young; Lee, Jung-Ah (June 21, 2011). "Hynix Creditors Launch Third Attempt at Stake Sale". The Wall Street Journal (Seoul). https://www.wsj.com/articles/SB10001424052702303936704576398701705230160. 
  29. Park, Ju-Min; Kim, Miyoung (July 7, 2011). "STX says may bid for Hynix as Hyundai Heavy drops out". Reuters. https://www.reuters.com/article/idUSL3E7I600T/. 
  30. Kim, Da-ye (July 10, 2011). "SK, STX bet on Hynix for future growth". The Korea Times. https://www.koreatimes.co.kr/www/tech/2024/05/129_90544.html. 
  31. Park, Ju-Min (November 11, 2011). "SK Telecom picked for $3 bln Hynix deal". Reuters (Seoul). https://www.reuters.com/article/idUSTRE7AA1F1/. 
  32. Lee, Jung-Ah (November 14, 2011). "SK Telecom to Buy Hynix Stake for $3.04 Billion". The Wall Street Journal (Seoul). https://www.wsj.com/articles/SB10001424052970204190504577037864059713458. 
  33. "Hynix names Chey as co-CEO as SK completes $3 billion deal". Reuters (Seoul). February 14, 2012. https://www.reuters.com/article/us-hynix-ceo-idUSTRE81D0BU20120214/?feedType=RSS&feedName=innovationNews. 
  34. Clarke, Peter (March 23, 2012). "Hynix name change reflects SK investment". EE Times (London). https://www.eetimes.com/hynix-name-change-reflects-sk-investment/. 
  35. "South Korea's SK Hynix to buy Intel's NAND business for $9 billion". 2020-10-20. https://uk.reuters.com/article/intel-divestiture-sk-hynix/south-koreas-sk-hynix-to-buy-intels-nand-business-for-9-billion-idUSKBN27507T. 
  36. Anderson, Mark (24 May 2022). "Intel spinoff Solidigm to open Rancho Cordova R&D office, lab". American City Business Journals. https://www.bizjournals.com/sacramento/inno/stories/news/2022/05/24/solidigm-intel-rancho-cordova.html. 
  37. Joseph F. Kovar (24 January 2022). "Solidigm CEO: Spinning Out of Intel To SK Hynix 'Gives Us The Greater Scale We Need'". CRN. https://www.crn.com/slide-shows/storage/solidigm-ceo-spinning-out-of-intel-to-sk-hynix-gives-us-the-greater-scale-we-need-. 
  38. Boram, Kim (2024). "SK hynix starts mass production of world's first 12-layer HBM3E". https://en.yna.co.kr/view/AEN20240926002700320?section=economy-finance/economy/. 
  39. Jang, Minseok; Lee, Sooyeon; Kong, kanga (September 12, 2025). "SK hynix Completes World's First HBM4 Development and Readies Mass Production". https://news.skhynix.com/sk-hynix-completes-worlds-first-hbm4-development-and-readies-mass-production/. 
  40. Roth, Emma (2025-12-09). "RAM is ruining everything" (in en-US). https://www.theverge.com/report/839506/ram-shortage-price-increases-pc-gaming-smartphones. 
  41. "SK Hynix (000660.KS) - Revenue" (in en-US). https://companiesmarketcap.com/sk-hynix/revenue/. 
  42. 42.0 42.1 42.2 "SK Hynix (000660.KS) - Earnings" (in en-US). https://companiesmarketcap.com/sk-hynix/earnings/. 
  43. "SK Hynix (000660.KS) - Market capitalization" (in en-US). https://companiesmarketcap.com/sk-hynix/marketcap/. 
  44. Lee, Joyce (September 6, 2022). "SK Hynix to invest $11 bln in new South Korea chip plant". Reuters. https://www.reuters.com/technology/sk-hynix-invest-11-bln-new-chip-plant-south-korea-2022-09-06/. 
  45. "SK hynix vows to maintain competitive edge in AI memory chips over Samsung, Micron". The Korea Times. March 27, 2024. https://www.koreatimes.co.kr/www/tech/2024/03/419_371546.html. 

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