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Luke Kawa7/10/25

AI darling Vertiv is getting crushed as Amazon launches cooling system for data center servers

It’s been the kiss of death for many companies, if not industries, when Amazon decides it wants to enter the space.

Vertiv Holdings is feeling that sting, with shares down about 8% midday Thursday after the e-commerce and cloud behemoth announced late on Wednesday that it’s developed its own cooling system called the In-Row Heat Exchanger (IRHX). These will be used to cool down racks on racks of Nvidia GPUs in data centers.

Per Dave Brown, vice president of compute and machine learning services at Amazon Web Services, the company considered building liquid-cooled data centers from scratch but it would have taken too long, and the time frame wouldn’t be compatible with the access to Blackwell chips. Using cooling systems currently on offer “didn’t scale,” he added, because they took up too much floor space. So Amazon made its own.

IRHX is irking Vertiv shareholders, as “thermal management solutions” is a part of its data center infrastructure business. They’re losing a customer and gaining a competitor!

“Amazon Web Services rolling out its own server liquid-cooling system could weigh on Vertiv’s future growth prospects,” Bloomberg Intelligence senior analyst Mustafa Okur wrote. “Around 10% of overall sales come from liquid cooling, we calculate, and AWS may be one of the largest customers.”

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Tasha Matsumoto

Stocks eke out gains on hopes for a path forward for reopening the Strait of Hormuz

Stocks rebounded on news that Iran is drafting a protocol with Oman to “monitor transit” through the crucial Strait of Hormuz.

Bull cow in a field

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Matt Phillips15h

AI server cluster maker Penguin Solutions takes flight

Small-cap AI server cluster maker Penguin Solutions surged Thursday after posting better-than-expected Q2 revenue and profit numbers Wednesday after the close, along with an increase in full-year sales and profit guidance.

The company, which was known as Smart Global Holdings until July 2024, has positioned itself as a provider of “end-to-end AI infrastructure solutions.”

Its Advanced Computing division designs and sells computers, cabling, and cooling systems, the server racks and clusters of racks AI data centers need. Its other main division sells flash and DRAM memory products.

It’s a pretty small company, with a fully diluted market cap of just over $1 billion and roughly 2,900 employees, according to FactSet.

The stock is volatile. Penguin dove during last year’s tariff tantrum that followed “Liberation Day” in April. Then it turned tail and doubled through early October amid a surge of call options activity, which tends to reflect retail interest. From the October peak, it then plunged by about 50%, before Thursday’s renaissance.

For what it’s worth, call options activity in Penguin is pretty busy today, too — relatively speaking — with roughly 2,625 traded as of 1:15 p.m. ET. That’s the most since early January, when the company last reported quarterly numbers. The average volume over the previous 25 trading sessions is about 325 calls a day, FactSet data shows.

Penguin Solutions Stock Takes Off On AI Bolstered Outlook

Penguin Solutions Stock Takes Off On AI Bolstered Outlook

The company, which was known as Smart Global Holdings until July 2024, has positioned itself as a provider of “end-to-end AI infrastructure solutions.”

Its Advanced Computing division designs and sells computers, cabling, and cooling systems, the server racks and clusters of racks AI data centers need. Its other main division sells flash and DRAM memory products.

It’s a pretty small company, with a fully diluted market cap of just over $1 billion and roughly 2,900 employees, according to FactSet.

The stock is volatile. Penguin dove during last year’s tariff tantrum that followed “Liberation Day” in April. Then it turned tail and doubled through early October amid a surge of call options activity, which tends to reflect retail interest. From the October peak, it then plunged by about 50%, before Thursday’s renaissance.

For what it’s worth, call options activity in Penguin is pretty busy today, too — relatively speaking — with roughly 2,625 traded as of 1:15 p.m. ET. That’s the most since early January, when the company last reported quarterly numbers. The average volume over the previous 25 trading sessions is about 325 calls a day, FactSet data shows.

markets

Momentum returns to optics stocks as the release valve for AI optimism

Potentially imminent end to the war? Buy optics stocks.

Maybe not? Buy optics stocks anyway.

Effectively all the juice left in the AI trade is coming from optics (and memory) stocks. And the latter group is taking a bit of a breather today while the former continues to surge.

Shares of Ciena Corp., Lumentum, and Coherent are building on recent big gains and among the biggest gainers in the S&P 500 near midday, while Applied Optoelectronics is also surging on Thursday.

These companies all provide solutions that help information move around in data centers, and thus are key beneficiaries of the aggressive capex plans of hyperscalers. Nvidia has invested $2 billion apiece in Coherent and Lumentum in deals that also include purchase commitments.

markets

Matt Phillips18h

Space stocks rip during a topsy-turvy day for the equity market

Satellite-services-from-space stocks surged Thursday after reports that Amazon is in talks to buy Globalstar, which provides voice and connectivity services from its satellite network. It also can’t hurt that the general mood around space is ebullient, following the successful launch of Artemis II on Thursday.

Planet Labs and ViaSat also soared on the news.

The gains for EchoStar — seen as a backdoor play at pre-IPO SpaceX exposure — and Rocket Lab were more muted, perhaps because a deep-pocketed competitor like Jeff Bezos getting serious about space services could complicate the plans of the two largest commercial space launch companies.

Rocket Lab and SpaceX see launch services as key to their aspirations of being major providers of voice and data services from low-Earth orbit satellites.

Tesla CEO Elon Musk’s SpaceX is the dominant provider of such services, and the early rumors on the company’s planned IPO — expected to be the largest ever — suggest the market is very excited about the prospects for the industry.

Elsewhere in the space stock world, Intuitive Machines — a maker of space infrastructure that provides services to NASA for lunar missions — also rose.

Globalstar surges after FT reports that Amazon is in talks to buy the satellite group

Globalstar surges after FT reports that Amazon is in talks to buy the satellite group

The gains for EchoStar — seen as a backdoor play at pre-IPO SpaceX exposure — and Rocket Lab were more muted, perhaps because a deep-pocketed competitor like Jeff Bezos getting serious about space services could complicate the plans of the two largest commercial space launch companies.

Rocket Lab and SpaceX see launch services as key to their aspirations of being major providers of voice and data services from low-Earth orbit satellites.

Tesla CEO Elon Musk’s SpaceX is the dominant provider of such services, and the early rumors on the company’s planned IPO — expected to be the largest ever — suggest the market is very excited about the prospects for the industry.

Elsewhere in the space stock world, Intuitive Machines — a maker of space infrastructure that provides services to NASA for lunar missions — also rose.

Hyunsoo Rim, David Crowther

Can Sandisk do the double?

The S&P 500 just had its worst quarter in years. Here are the biggest winners and losers.

Sandisk and energy stocks soared while software names sank amid a broad sell-off in tech stocks.

Balancing balls of different sizes on pink seesaws creating equilibrium

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