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Alphabet shares fell the most in a year on Wednesday after revenue in the company’s Google Cloud unit trailed analyst estimates.

The stock sank about close to 9% in mid-day trading to $126.51. It’s headed for its steepest drop since a 9.1% decline on Oct. 26, 2022, which followed an earnings miss.

Wednesday’s plunge came even after Alphabet beat Wall Street expectations for both revenue and earnings per share. Its cloud miss was a stark contrast to Microsoft’s earnings, which showed accelerating growth in the company’s Intelligent Cloud business. Google posted cloud revenue of $8.41 billion, compared to Street Account estimates of $8.64 billion.

“The disappointment at Google Cloud contrasted with better-than-expected Azure growth at Microsoft,” UBS analysts said.

Alphabet Chief Financial Officer Ruth Porat said on the investor call that while cloud growth “remained strong across geographies, industries and products,” the expansion rate “reflects the impact of customer optimization efforts,” a phrase that generally refers to clients reeling in their spending.

Some of those comments seemed to have spooked UBS analysts.

“The GCP commentary around optimization is disappointing given that investors were hoping cloud players to begin lapping optimizations and seeing more positive momentum,” UBS said in a separate note to investors. “MSFT also pointed to an expectation that optimization would continue through this calendar year. This is consistent with our AWS estimate cuts last week.”

KeyBanc analysts were also concerned with the results in comparison to Microsoft’s growth. “While management notes Google Cloud Platform (GCP) continues to grow faster than reported results, we believe limited disclosures are creating concerns that Google lost share to Microsoft Azure, which saw growth accelerate 1 point to +28% y/y FX neutral growth,” they said.

Jefferies analysts noted Google Cloud grew 22%, slower than the 28% growth the company posted in the second quarter. They said that while interest in generative artificial intelligence is high, “The industry’s challenge in ramping AI infrastructure may be a factor in slowing recognized revs. We expect better AI impact in ’24.”

— CNBC’s Jennifer Elias and Michael Bloom contributed to this report.

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

The letters AI, which stands for “artificial intelligence,” stand at the Amazon Web Services booth at the Hannover Messe industrial trade fair in Hannover, Germany, on March 31, 2025.

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Amazon said Wednesday that its cloud division has developed hardware to cool down next-generation Nvidia graphics processing units that are used for artificial intelligence workloads.

Nvidia’s GPUs, which have powered the generative AI boom, require massive amounts of energy. That means companies using the processors need additional equipment to cool them down.

Amazon considered erecting data centers that could accommodate widespread liquid cooling to make the most of these power-hungry Nvidia GPUs. But that process would have taken too long, and commercially available equipment wouldn’t have worked, Dave Brown, vice president of compute and machine learning services at Amazon Web Services, said in a video posted to YouTube.

“They would take up too much data center floor space or increase water usage substantially,” Brown said. “And while some of these solutions could work for lower volumes at other providers, they simply wouldn’t be enough liquid-cooling capacity to support our scale.”

Rather, Amazon engineers conceived of the In-Row Heat Exchanger, or IRHX, that can be plugged into existing and new data centers. More traditional air cooling was sufficient for previous generations of Nvidia chips.

Customers can now access the AWS service as computing instances that go by the name P6e, Brown wrote in a blog post. The new systems accompany Nvidia’s design for dense computing power. Nvidia’s GB200 NVL72 packs a single rack with 72 Nvidia Blackwell GPUs that are wired together to train and run large AI models.

Computing clusters based on Nvidia’s GB200 NVL72 have previously been available through Microsoft or CoreWeave. AWS is the world’s largest supplier of cloud infrastructure.

Amazon has rolled out its own infrastructure hardware in the past. The company has custom chips for general-purpose computing and for AI, and designed its own storage servers and networking routers. In running homegrown hardware, Amazon depends less on third-party suppliers, which can benefit the company’s bottom line. In the first quarter, AWS delivered the widest operating margin since at least 2014, and the unit is responsible for most of Amazon’s net income.

Microsoft, the second largest cloud provider, has followed Amazon’s lead and made strides in chip development. In 2023, the company designed its own systems called Sidekicks to cool the Maia AI chips it developed.

WATCH: AWS announces latest CPU chip, will deliver record networking speed

AWS announces latest CPU chip, will deliver record networking speed

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Bitcoin rises to fresh record above $112,000, helped by Nvidia-led tech rally

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Bitcoin rises to fresh record above 2,000, helped by Nvidia-led tech rally

The logo of the cryptocurrency Bitcoin can be seen on a coin in front of a Bitcoin chart.

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Bitcoin hit a fresh record on Wednesday afternoon as an Nvidia-led rally in equities helped push the price of the cryptocurrency higher into the stock market close.

The price of bitcoin was last up 1.9%, trading at $110,947.49, according to Coin Metrics. Just before 4:00 p.m. ET, it hit a high of $112,052.24, surpassing its May 22 record of $111,999.

The flagship cryptocurrency has been trading in a tight range for several weeks despite billions of dollars flowing into bitcoin exchange traded funds. Bitcoin purchases by public companies outpaced ETF inflows in the second quarter. Still, bitcoin is up just 2% in the past month.

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Bitcoin climbs above $112,000

On Wednesday, tech stocks rallied as Nvidia became the first company to briefly touch $4 trillion in market capitalization. In the same session, investors appeared to shrug off the latest tariff developments from President Donald Trump. The tech-heavy Nasdaq Composite notched a record close.

While institutions broadly have embraced bitcoin’s “digital gold” narrative, it is still a risk asset that rises and falls alongside stocks depending on what’s driving investor sentiment. When the market is in risk-on mode and investors buy growth-oriented assets like tech stocks, bitcoin and crypto tend to rally with them.

Investors have been expecting bitcoin to reach new records in the second half of the year as corporate treasuries accelerate their bitcoin buying sprees and Congress gets closer to passing crypto legislation.

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Perplexity launches AI-powered web browser for select group of subscribers

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Perplexity launches AI-powered web browser for select group of subscribers

Dado Ruvic | Reuters

Perplexity AI on Wednesday launched a new artificial intelligence-powered web browser called Comet in the startup’s latest effort to compete in the consumer internet market against companies like Google and Microsoft.

Comet will allow users to connect with enterprise applications like Slack and ask complex questions via voice and text, according to a brief demo video Perplexity released on Wednesday.

The browser is available to Perplexity Max subscribers, and the company said invite-only access will roll out to a waitlist over the summer. Perplexity Max costs users $200 per month.

“We built Comet to let the internet do what it has been begging to do: to amplify our intelligence,” Perplexity wrote in a blog post on Wednesday.

Perplexity is best known for its AI-powered search engine that gives users simple answers to questions and links out to the original source material on the web. After the company was accused of plagiarizing content from media outlets, it launched a revenue-sharing model with publishers last year.

In May, Perplexity was in late-stage talks to raise $500 million at a $14 billion valuation, a source familiar confirmed to CNBC. The startup was also approached by Meta earlier this year about a potential acquisition, but the companies did not finalize a deal.

“We will continue to launch new features and functionality for Comet, improve experiences based on your feedback, and focus relentlessly–as we always have–on building accurate and trustworthy AI that fuels human curiosity,” Perplexity said Wednesday.

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