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Bulls on parade

Three major US stock indexes post record closing highs on the same day for the first time since November 2021

Tech was far and away the best-performing S&P 500 sector ETF, while consumer staples was at the bottom of the leaderboard.

Nia Warfield, Luke Kawa

9/18/25 4:32PM

The S&P 500, Nasdaq 100, and Russell 2000 all posted fresh closing highs on Thursday.

The benchmark US stock index ended 0.5% higher, the Nasdaq 100 rallied 1%, and the Russell 2000 far outperformed with a 2.5% advance. Blue Horseshoe loves Anacott Steel, and small-cap stocks love Federal Reserve rate cuts.

The record close for the small-cap Russell 2000 was its first since November 2021, which means it’s also the first time in nearly four years that all three major indexes closed at fresh peaks on the same day.

Tech was far and away the best-performing S&P 500 sector ETF, while consumer staples was at the bottom of the leaderboard.

Gains on the day were led by Intel, which jumped 22.8%, its biggest one-day advance since 1987, after Nvidia said it would buy $5 billion worth of Intel stock as part of a broader partnership to codevelop data center and PC products. The news was a blow to Advanced Micro Devices, which was down big early but recovered to finish off just 0.8%. Elsewhere…

Declines were led in part by Darden Restaurants, which fell 7.7% after the Olive Garden and LongHorn parent company’s Q1 results came in lighter than expected.

CrowdStrike shares popped 12.8% after the company said it expects fiscal year 2027 net new annual recurring revenues to grow more than 20% — topping the Street’s estimates.

Abercrombie & Fitch leapt 5.3% after BTIG initiated coverage on the stock with a “buy” rating and set a $120 price target as brand momentum for the Y2K retailer heats up.

Novo Nordisk jumped 6.3% after the Danish GLP-1 trailblazer released two positive study results, including one for its oral semaglutide treatment (“Wegovy in a pill”).

Uber ticked 1.9% higher after the company announced a new partnership with drone operator Flytrex to begin testing an autonomous delivery-by-air system by the end of the year.

IonQ shares rose 2.1% after the company signed a memorandum of understanding with the US Department of Energy “to advance the development and deployment of quantum technologies in space.” Quantum peer Rigetti Computing jumped 12.5% on its $5.8 million contract with the Air Force Research Laboratory.

Tasha Matsumoto

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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.

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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

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.”

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.

Luke Kawa18h

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.

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

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.

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

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Can Sandisk do the double?

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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