Companies/Technology/Semiconductors (memory: DRAM, NAND flash, HBM)

SK hynix

SKHY · Nasdaq Global Select Market (ADSs, SKHY); KRX KOSPI (common shares, 000660)Earnings Oct 27 (est.)Icheon, Gyeonggi-do, South KoreaWebsite ↗
156.94▼ 2.36%Pooled price · full market data →

What matters nowUpdated 3 h ago

  • SK hynix's Seoul shares closed 10.09% lower at 1,443,000 won on October 13, with the KOSPI down 5.46% and foreign investors net selling 4.51 trillion won 1. Causes cited were CXMT's 4F² claim, a Financial Times report that OpenAI's annualized revenue was about 30% below a previously reported figure, and the loss of share buybacks that had been cushioning the stock 1.
  • CXMT's chief executive said on October 9 and 10 that its 4F² DRAM cell design, which cuts cell area by about 33% versus the 6F² design in production today, will reach server DDR5 RDIMM modules by the end of 2026; CXMT has not disclosed specifications, process or yields 2.
  • On the pooled 24/7 venue price, the SKHY ADS was $155.39, down 3.32% from the previous close of $160.72. Sessions of 4.4% to 5.9% declines came on September 10, September 13, October 6, October 8 and October 12, and the CXMT news 2 is the candidate event for the 5.87% drop on October 12.
  • FY2025 revenue was 97.15 trillion won with operating profit of 47.21 trillion won; in Q2 2026 revenue reached 79.32 trillion won and operating profit 60.54 trillion won, a 76% operating margin. HBM4 mass shipments began in Q2 2026 and production ramps through the second half.
  • Reuters reported on September 16 that SK hynix is in exploratory talks with Intel on U.S. memory production, and the company said nothing has been decided 3. On October 1 it said no decision has been made on Solidigm financing or a possible U.S. listing 4.
  • Next: Q3 2026 results are expected on October 28, 2026 (date not confirmed), and the Yongin Phase 1 first cleanroom is targeted for early 2027. Consumer Price Index data for September is due October 14, and Polymarket odds give 81.5% for no change in Fed rates after the October 2026 meeting.
[1]
SK hynix closes down 10.1% in Seoul on CXMT claim and heavy foreign selling
The Korea Times · Oct 13
[2]
China's CXMT says its 4F² DRAM cell design will reach servers by year-end, rattling memory stocks
Seoul Economic Daily · Oct 10
[3]
Reuters reports SK hynix in talks with Intel on first U.S. memory production; company says nothing decided
TechCrunch (citing Reuters) · Sep 16
[4]
SK hynix says no decision yet on Solidigm financing or listing after media reports
SK hynix Newsroom · Oct 1

SK hynix is one of the three largest memory chipmakers in the world. It makes DRAM, including high-bandwidth memory (HBM) for AI accelerators, and NAND flash for enterprise SSDs and phones. Its FY2025 revenue was 97.15 trillion won with an operating profit of 47.21 trillion won. In Q2 2026 revenue reached 79.32 trillion won and operating profit 60.54 trillion won, a 76% margin. Its American depositary shares began trading on Nasdaq on July 10, 2026 at an offering price of $149 per ADS, each ADS representing one-tenth of a common share listed in Seoul.

How it makes money

SK hynix sells memory chips to AI and cloud server makers, PC and smartphone makers, and storage customers, mostly outside Korea. DRAM made up 77.1% of 2025 sales and NAND flash 21.3%. Pricing follows industry supply and demand, so memory contract prices, HBM share and capacity additions drive its results. Long-term agreements with around 10 customers were finalized in 2026. Capital spending on new fabs and packaging decides how much output it can add in later years.

Last 12 monthsChart & venues →

128.44161.04193.63China's CXMT says its 4F² DRAM cell design will reach servers by year-end, rattling memory stocks1SK hynix says no decision yet on Solidigm financing or listing after media reports2Micron posts record fiscal Q4 revenue of $54.23 billion and guides $61.5 billion for next quarter3Reuters reports SK hynix in talks with Intel on first U.S. memory production; company says nothing decided4SK hynix announces 40 trillion won buyback to cancel shares and lifts payout to 50%+ of free cash flow5SK hynix board approves 54.3 trillion won for Yongin Y2 DRAM fab and Cheongju M17 NAND fab6SK hynix Q2 2026 revenue hits record 79.3 trillion won; operating profit 60.5 trillion won at 76% margin7Jul 1Jul 27Aug 22Sep 17Oct 12
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scalingproduct line

HBM (high-bandwidth memory)

HBM4 mass shipments began in Q2 2026 and production ramps through the second half.

HBM revenue share (IDC ranking) · 1Q26
56.4%
HBM revenue growth · FY2025
More than doubled year on year

Next: HBM4 production ramp · 2026-07-01

scalingproduct line

Conventional DRAM (server, PC, mobile)

1c-class DRAM is shipping in volume, and DRAM prices rose sharply in Q2 2026.

DRAM share of total sales · 1Q26
77.3%
DRAM share of total sales · FY2025
77.1%
scalingproduct line

NAND flash and enterprise SSD

321-layer NAND is now the largest share of production as eSSD demand from AI data centers grows.

NAND flash share of total sales · 1Q26
22.0%
NAND flash share of total sales · FY2025
21.3%
launchednext-gen product

SOCAMM2 memory module

Sales grew significantly in Q2 2026 from a low base.

Latest newsAll news →

SK hynix closes down 10.1% in Seoul on CXMT claim and heavy foreign selling

SK hynix's Seoul shares closed 10.09% lower at 1,443,000 won on October 13, Samsung Electronics fell 7.39%, and the KOSPI closed down 5.46% at 6,035.35.

Markets

China's CXMT says its 4F² DRAM cell design will reach servers by year-end, rattling memory stocks

CXMT's chief executive said at the 4th Integrated Circuit and Chiplet Conference in Shanghai on October 9 to 10 that the company has made progress on a 4F² DRAM cell design using vertical surround gate transistors.

Markets

SK hynix says no decision yet on Solidigm financing or listing after media reports

SK hynix issued a clarification on October 1 responding to media reports about Solidigm's capital plans, including a possible U.S.

Capital

Micron posts record fiscal Q4 revenue of $54.23 billion and guides $61.5 billion for next quarter

Micron reported record fiscal fourth-quarter 2026 revenue of $54.23 billion on September 30, 2026, up from $41.46 billion in the prior quarter.

Earnings

SK hynix falls 4.1% after holiday as Solidigm U.S. IPO reports add to rate and oil selloff

SK hynix's Seoul shares fell 4.14% to 1,785,000 won on September 28, the first session after the Chuseok holiday, while the KOSPI dropped 2.22%.

Markets

SK hynix shows Vera Rubin-linked HBM4 and SOCAMM2 at TSMC OIP and wins TSMC partner award

At the TSMC OIP Conference in Santa Clara on September 23, SK hynix displayed a Nvidia Vera Rubin superchip setup with 12-layer 36GB HBM4 and 96GB SOCAMM2 modules mounted on it.

Product