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A man walks past a logo of SK Hynix at the lobby of the company’s Bundang office in Seongnam on January 29, 2021.

Jung Yeon-Je | AFP | Getty Images

South Korean memory chipmaker SK Hynix said Friday that it was ready to mass produce its next-generation high-bandwidth memory chips, staying ahead of rivals and sending the company’s stock soaring. 

HBM is a type of memory that is used in chipsets for artificial-intelligence computing, including in chips from global AI giant Nvidia — a major client of SK Hynix. 

SK Hynix said earlier this year that it had shipped samples of its HBM4 chips to customers, as it sought to beat competitors including Samsung Electronics and Micron Technologies.

According to its announcement Friday, the company has finished its internal validation and quality assurance process for HBM4 and is ready to manufacture those at scale.

“Completion of HBM4 development will be a new milestone for the industry,” said Joohwan Cho, head of HBM development at SK Hynix.

HBM4 is the sixth generation of HBM technology — a type of Dynamic Random Access Memory, or DRAM. DRAM can be found in personal computers, workstations and servers and is used to store data and program code.

SK Hynix’s latest HBM4 product has doubled bandwidth and increased power efficiency by 40% compared to the previous generation, according to the company.  

Notably, HBM4 is expected to be the main AI memory chip needed for Nvidia’s next-generation Rubin architecture — a more powerful AI chip for global data centers — said Dan Nystedt, vice-president at TriOrient, an Asia-based private investment firm with a focus on semiconductors.

“SK Hynix is a key supplier for Nvidia, and the announcement shows it remains far ahead of rivals,” he said.

Samsung Electronics and Micron have struggled to catch up to SK Hynix in HBM, as it builds on its segment leadership and benefits from being Nvidia’s main HBM supplier. 

However, the companies have made some progress. Micron has also shipped samples of its HBM4 products to customers, while Samsung has reportedly been working to get its HBM4 chips certified by Nvidia. 

“Despite the shifting competitive landscape, we anticipate SK Hynix will maintain a commanding position, potentially securing around 50% of the HBM market share by 2026,” said MS Hwang, research director at Counterpoint Research, covering memory solutions.

SK Hynix shares rose more than 7% Friday to hit their highest since 2000, following its chip announcement, bringing year-to-date gains to nearly 90%. Shares of Samsung Electronics and Micron have risen over 40% and nearly 80% in 2025, respectively.

SK Hynix posted record operating profit and revenue for its June-quarter, thanks to strong HBM demand, which accounted for 77% of its overall revenues. The company’s market capitalization has increased by more than $80 billion since the start of the year, according to data from S&P Capital IQ.

The firm expects to double HBM sales for the full year compared to 2024, and for demand from AI to continue to grow into 2026.

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Armis raises $435 million, valuing cybersecurity startup at $6.1 billion

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Armis raises 5 million, valuing cybersecurity startup at .1 billion

Armis CEO Yevgeny Dibrov and CTO Nadir Izrael.

Courtesy: Armis

Cybersecurity startup Armis has raised $435 million in a funding round that values the company at $6.1 billion.

“The need for what Armis is doing and what we are building, in this cyber exposure management and security platform, is just increasing,” CEO and co-founder Yevgeny Dibrov told CNBC. There’s “very unique and huge demand right now, and we are continuing to grow.”

Goldman Sachs Alternatives’ growth equity fund anchored the investment, with participation from CapitalG, a venture arm of Alphabet. The security firm brought on Evolution Equity Partners as a new investor.

Armis helps businesses secure and manage internet-connected devices and protect them against cyber threats. The company chose Goldman’s growth fund due to its strong track record helping companies accelerate growth toward initial public offerings, Dibrov said.

“This is the partner for us to go to the next stage and continue to build here a real generational business to get to the Hall of Fame of cyber and SaaS businesses,” he said.

In September, Bloomberg reported that the company was exploring as much as seven stake offers. Dibrov told CNBC the funding round was an outcome of those talks.

Founded in 2016, Armis in August said it surpassed $300 million in annual recurring revenues. The California-based company achieved that milestone less than a year after topping $200 million in ARR.

Armis raised $200 million in an October 2024 funding round with General Catalyst and Alkeon Capital. Previous backers have included Sequioa Capital and Bain Capital Ventures. Armis also raised $100 million in a secondary offering in July.

Dibrov said Armis is aiming for an IPO at the end of 2026 or early 2027, but he said he’s in no rush and is waiting on “market conditions.” The company’s primary goal is to hit $1 billion in annual recurring revenue, he said.

“Going public will be before that,” he said.

WATCH: Tech meets policy: Cybersecurity collaboration necessary in the era AI, says Google engineer

Tech meets policy: Cybersecurity collaboration necessary in the era AI, says Google engineer

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TASER maker Axon plunges 17% after earnings fall short due to tariff hit

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 TASER maker Axon plunges 17% after earnings fall short due to tariff hit

Rick Smith, CEO of Axon Enterprises.

Adam Jeffery | CNBC

Axon Enterprise‘s stock plummeted 17% after the TASER maker missed Wall Street’s third-quarter profit expectations as it grapples with tariff constraints.

Adjusted earnings totaled $1.17 per share adj., falling short of a $1.52 per share forecast from LSEG. Adjusted gross margins fell 50 basis points from a year ago to 62.7%, which Axon attributed to tariff impacts.

Axon’s connected devices business, which includes its TASER and counter drone equipment, felt the biggest pinch during the first full quarter with tariffs. The business segment accounted for over $405 million in revenues, increasing 24% year over year.

“As long as tariffs stay in place, I view that as sort of a one-time adjustment,” finance chief Brittany Bagley said during the earnings call. “Now that’s baked into the gross margins.”

Bagley expects growth in the company’s software business to eventually offset margin losses long-term. Software and services revenues jumped 41% from a year ago to $305 million.

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Total revenues grew 31% from a year ago to $711 million, topping the $704 million expected by analysts polled by LSEG. The U.S. accounted for 84% of sales.

The Arizona-based company reported a net loss of $2.2 million, a loss of 3 cents per share, versus net income of $67 million, or 86 cents per share in the year-ago period.

Axon lifted its full-year revenue outlook to $2.74 billion, from between $2.65 billion and $2.73 billion. FactSet analysts expected $2.72 billion at the midpoint.

The company expects revenues between $750 million and $755 million during the fourth quarter, which was above LSEG analyst expectations of $746 million.

Along with the results, Axon said it is acquiring Carbyne in a deal that values the emergency communications platform at $625 million. The deal is expected to close next year in the first quarter.

Axon shares have jumped more than 60% over the last year and are up 18% year to date as demand for its security tools accelerates.

“We are building an elite business that is still nowhere near its ultimate potential, and we are doing it with a team that is rapidly bought into the mission,” said Axon’s president Josh Isner on the earnings call.

We're in amazing position to take advantage of the AI era, says Axon CEO Rick Smith

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Fintech Ripple gets $40 billion valuation after $500 million funding

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Fintech Ripple gets  billion valuation after 0 million funding

Brad Garlinghouse, CEO of Ripple, speaks at the 2022 Milken Institute Global Conference in Beverly Hills, California, U.S., May 4, 2022. 

Mike Blake | Reuters

Digital assets and infrastructure company Ripple said Wednesday it has raised $500 million in funding, lifting its valuation to $40 billion.

The fundraise comes after a slew of acquisitions and as the company expands its product base beyond just payments.

Crypto and digital asset companies are trying to take advantage of what is seen by the industry as a more favorable environment in the U.S. after the election of President Donald Trump and the passing of a landmark stablecoin law known as the GENIUS Act.

Ripple, which is closely linked to the XRP cryptocurrency, said the funding round was led by funds managed by affiliates of Fortress Investment Group, affiliates of Citadel Securities, Pantera Capital, Galaxy Digital, Brevan Howard, and Marshall Wace.

‘Record year of growth’

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