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A Samsung Electronics Co. 12-layer HBM3E, top, and other DDR modules arranged in Seoul, South Korea, on Thursday, April 4, 2024. 

SeongJoon Cho | Bloomberg | Getty Images

Samsung Electronics was once the dominant player in a type of semiconductor known as memory, putting it in a great position to capitalize on the boom of artificial intelligence.

But the South Korea electronics giant has now fallen behind its long-time rival SK Hynix in next-generation chips that have been key component for AI silicon leader Nvidia. The result? Samsung’s profit has plunged, around $126 billion has been wiped off its market value, according to data from S&P Capital IQ, and an executive issued a rare public apology about the company’s recent financial performance.

Memory is a critical type of chip used to store data, and it can be found in a plethora of devices from smartphones to laptops. For years, Samsung was the undeniable leader in this technology, ahead of South Korean rival SK Hynix and U.S. competitor Micron.

But as AI applications such as OpenAI’s ChatGPT rose in popularity, the underlying infrastructure required to train the huge models they rely on became a bigger focus. Nvidia has emerged as the top player in this space with its graphics processing units (GPUs) that have become the gold standard used by tech giants for AI training.

A crucial part of that semiconductor architecture is high-bandwidth memory, or HBM. This next generation of memory involves stacking multiple dynamic random access memory (DRAM) chips, but it had a small market before the AI boom.

That’s where Samsung got caught out and failed to invest.

“HBM has been a very niche product … for a long time and Samsung has not focused its resources on its development,” Kazunori Ito, director of equity research at Morningstar, told CNBC by email.

“Due to the difficulty of the technology involved in stacking DRAMs and the small size of the addressable market, it was believed that the high development costs were not justified.”

SK Hynix saw this opportunity. The company aggressively launched HBM chips which were approved for use in Nvidia architecture and, in the process, the South Korean firm established a close relationship with the U.S. giant. Nvidia’s CEO even asked the company to speed up supply of its next generation chip, underscoring the importance of HBM to its products.

SK Hynix posted record quarterly operating profit in the September quarter.

“With strong R&D (research and development) investments and established industry partnerships, SK Hynix maintains an edge in both HBM innovation and market penetration,” Brady Wang, associated director at Counterpoint Research, told CNBC by email.

Samsung told CNBC that, in the third quarter, total HBM sales grew more than 70% quarter-on-quarter. The tech giant added that the current product known as HBM3E is in mass production and generating sales.

The South Korean tech company noted that development for its next-generation HBM4 is “underway according to plan” and that the company is targeting starting “mass production” in the second half of 2025.

Can Samsung make a comeback?

Analysts said that Samsung is lagging behind competitors for a number of reasons, including underinvestment in HBM and the fact that it is not a first-mover.

“It is fair to say that Samsung has not been able to close the gap with SK Hynix on the HBM development roadmap,” Morningstar’s Ito said.

Samsung struggling to execute as they have in the past, analyst says

Samsung’s ability to make a comeback in the short term appears to be closely linked to Nvidia.

A company must pass a strict qualification process before Nvidia approves it as a HBM supplier — and Samsung has not yet completed this verification. But a green light from Nvidia could open the door for Samsung to return to growth and compete more effectively with SK Hynix, according to analysts.

“Since NVIDIA holds more than 90% of the AI chip market, where most HBMs are used, NVIDIA’s approval is critical for Samsung to benefit from the robust demand for AI servers,” Ito said.

A Samsung spokesperson said that the company has made “meaning progress” regarding HBM3E and has “completed an important phase in the qualification process.”

“We expect to start expanding sales in the fourth quarter,” the spokesperson said.

Meanwhile, Wang noted that Samsung’s strength in research and development, as well as the company’s semiconductor manufacturing capacity that could help it catch up to SK Hynix.

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CNBC Daily Open: U.S. stocks retreat from highs as Broadcom leads tech sell-off

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CNBC Daily Open: U.S. stocks retreat from highs as Broadcom leads tech sell-off

Signage at the Broadcom Inc. headquarters in San Jose, California, U.S., on Monday, June 2, 2025.

David Paul Morris | Bloomberg | Getty Images

The sell-off in artificial intelligence stocks continued unabated Friday stateside. Broadcom shares tumbled more than 11% as investors grew concerned over lower margins and uncertain deals. Names such as Nvidia, Advanced Micro Devices and Oracle fell in sympathy, which caused major U.S. indexes to close lower.

It was a motif patterning the week. Even though the Dow Jones Industrial Average rose 1.1% week on week on the back of outperformance by financial stocks, tech names dragged down the S&P 500 and the Nasdaq Composite, which fell 0.6% and 1.6% respectively for the week.

That said, investors could have just been jittery amid the narrative of an apparent AI bubble, and were spooked by any sign of bad news. After all, Broadcom’s earnings — as well as its guidance for the current quarter — breezed past expectations.

“Frankly we aren’t sure what else one could desire as the company’s AI story continues to not only overdeliver but is doing it at an accelerating rate,” Bernstein analyst Stacy Rasgon, who has a “buy” rating on Broadcom, wrote in a Friday note.

Future prospects also look rosy, according to UBS. “We expect high profitability and the accelerating impact of the AI, power and resources, and longevity themes to drive 2026 performance,” said strategist Sagar Khandelwal.

But in the near term, investors may still be flighty, unless something concretely reassuring, such as Oracle achieving positive cash flow, reassures them the snapping sound is just a twig in the forest.

What you need to know today

U.S. stocks dragged down by AI names. Major indexes fell Friday, a day after they hit record highs. Asia-Pacific markets traded lower Monday. South Korea’s Kospi retreated roughly 1.5% as of 2:45 p.m. Singapore time (1:45 a.m. ET), leading losses in the region.

China’s economic slowdown deepens. Even though the country’s retail sales and industrial production grew year on year in November, their increase missed forecasts and slowed from the previous month. Investment in fixed assets in the January-to-November period contracted from a year earlier.

The end of the ‘Berkshire way’? Several aspects of Berkshire Hathaway’s leadership transition are signaling that the conglomerate is drifting away from the famously decentralized “Berkshire way,” CNBC’s Alex Crippen writes.

Hong Kong court finds Jimmy Lai guilty. The 78-year-old pro-democracy activist and media baron was ruled guilty of sedition and collusion with foreign countries by a Hong Kong court on Monday. The results might unsettle foreign investors, analysts say.

[PRO] China’s food security strategy. The spat between Beijing and Washington over soybean purchases has highlighted the evolution of China’s domestic agriculture industry. Goldman Sachs thinks this is the best way to play the sector.

And finally…

Copper prices have soared this year, hitting multiple record highs, fueled by supply disruptions and fears over U.S. tariffs.

Imagebroker/sunny Celeste | Imagebroker | Getty Images

Copper could hit ‘stratospheric new highs’ as hoarding of the metal in U.S. continues

Copper prices have hit multiple record highs this year, fueled by supply disruptions and as fears over U.S. tariffs have led to a surge in demand. The rally is set to continue into 2026.

Citi analysts expect prices of the red metal to skyrocket on the back of stronger demand led by the energy transition and artificial intelligence sectors. Electrification, grid expansion and data-center build-outs require large amounts of the metal for wiring, power transmission and cooling infrastructure.

— Lee Ying Shan

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CNBC Daily Open: Investors sell off tech despite steady Broadcom numbers

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CNBC Daily Open: Investors sell off tech despite steady Broadcom numbers

Signage at the Broadcom Inc. headquarters in San Jose, California, U.S., on Monday, June 2, 2025.

David Paul Morris | Bloomberg | Getty Images

The sell-off in artificial intelligence stocks continued unabated Friday stateside. Broadcom shares tumbled more than 11% as investors grew concerned over lower margins and uncertain deals. Names such as Nvidia, Advanced Micro Devices and Oracle fell in sympathy, which caused major U.S. indexes to close lower.

It was a motif patterning the week. Even though the Dow Jones Industrial Average rose 1.1% week on week on the back of outperformance by financial stocks, tech names dragged down the S&P 500 and the Nasdaq Composite, which fell 0.6% and 1.6% respectively for the week.

That said, investors could have just been jittery amid the narrative of an apparent AI bubble, and were spooked by any sign of bad news. After all, Broadcom’s earnings — as well as its guidance for the current quarter — breezed past expectations.

“Frankly we aren’t sure what else one could desire as the company’s AI story continues to not only overdeliver but is doing it at an accelerating rate,” Bernstein analyst Stacy Rasgon, who has a “buy” rating on Broadcom, wrote in a Friday note.

Future prospects also look rosy, according to UBS. “We expect high profitability and the accelerating impact of the AI, power and resources, and longevity themes to drive 2026 performance,” said strategist Sagar Khandelwal.

But in the near term, investors may still be flighty, unless something concretely reassuring, such as Oracle achieving positive cash flow, reassures them the snapping sound is just a twig in the forest.

What you need to know today

U.S. stocks dragged down by AI names. Major indexes fell Friday, a day after they hit record highs. The pan-European Stoxx 600 retreated almost 0.5%. Separately, the U.K. economy unexpectedly shrank 0.1% in the three months to October.

Oracle will finish data centers on time. The company issued its response to a Bloomberg report, which cited unnamed people, that Oracle will complete data centers for OpenAI in 2028 rather than 2027. “There have been no delays,” Oracle said.

Coinbase to have an in-house prediction market. It will be powered be Kalshi, a source close to the matter told CNBC, and is a play to expand asset classes available on the cryptocurrency exchange.

The end of the ‘Berkshire way’? Several aspects of Berkshire Hathaway’s leadership transition are signaling that the conglomerate is drifting away from the famously decentralized “Berkshire way,” CNBC’s Alex Crippen writes.

[PRO] China’s food security strategy. The spate between Beijing and Washington over soybean purchases has highlighted the evolution of China’s domestic agriculture industry. Goldman Sachs thinks this is the best way to play the sector.

And finally…

A bear statue stands outside the Frankfurt Stock Exchange, operated by Deutsche Boerse AG, in Frankfurt, Germany, on Friday, March 13, 2020. Top European CEOs are fearing a euro zone recession as a confluence of economic shocks continues to threaten the outlook for the bloc.

Alex Kraus | Bloomberg | Getty Images

Global week ahead: Europe under fire

U.S. President Donald Trump’s verdict on Europe: a “decaying” group of nations led by “weak” people. His criticism in a recent Politico interview adds to a tough period for the bloc, with challenges on multiple fronts testing European leaders in the final weeks of the year.

This week looks set to be critical, with a high-stakes summit in Brussels and the European Central Bank’s final policy meeting of the year. Key topics for this week include defrosting frozen Russian assets for Ukraine aid; EU vs. U.S. in trade and tech, and updated economic figures at the ECB meeting.

Leonie Kidd

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Broadcom and Costco’s rich valuations leave little room for error as battleground stocks

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Broadcom and Costco's rich valuations leave little room for error as battleground stocks

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