The Iran-backed Houthis reportedly advanced to Yemen’s strategic Perim Island on Friday, delivering a major boost to the militant group’s push to take control of one of the world’s most important shipping choke points.

The capture of Perim Island, which was reported by several news agencies, citing multiple Yemeni government sources, comes just one day after the Houthis seized Yemen’s port city of Mokha on the Red Sea coast. CNBC could not independently confirm the report.

The rapid ground offensive is seen as a severe setback to Saudi Arabia and the Yemeni forces it backs and puts Iran and its proxies on course to exercise control over two critically important oil choke points on either side of the Arabian Peninsula: the Bab el-Mandeb Strait and the Strait of Hormuz.

Perim Island is a small and rocky area of land that divides the Bab el-Mandeb Strait, a waterway that connects the Red Sea to the Gulf of Aden and to global markets.

There are concerns that the Houthis’ advance toward the Bab el-Mandeb Strait could have significant ramifications for global trade, particularly if the militant group ratchets up threats or attacks on Red Sea shipping.

The Houthi advance prompted Saudi Crown Prince Mohammed bin Salman to personally press President Donald Trump for U.S. military intervention, MS NOW reported later Friday, according to a person familiar with the conversations.

The crown prince spoke with Trump twice Thursday and urged him to strike the Iranian-backed group as it closed in on the Bab el-Mandeb. Trump declined, saying the U.S. does not plan to widen its regional military campaign to include the Houthis, according to the person, who was granted anonymity because of the sensitive nature of the conversations. Axios first reported the calls.

A senior administration official told CNBC the U.S. remains focused on protecting core national security interests, including freedom of navigation in the Red Sea, “while empowering our regional partners to take the lead in managing and resolving regional security challenges.”

The official added that the U.S. is “in continuous dialogue with Saudi Arabia.”

The capture of Mokha marked a “major blow” to Saudi Arabia as it raises the possibility of the group exerting a tighter grip on the Bab el-Mandeb Strait, according to Hamish Kinnear, principal Middle East and North Africa analyst at risk intelligence company Verisk Maplecroft.

Mokha is situated about 75 kilometers (46 miles) north of the Bab el-Mandeb Strait.

“The Houthis were already threatening Saudi shipping from previous positions, but their capture of Mocha opens up the possibility of further advances towards the Bab el-Mandeb coastline and a tighter grip on the chokepoint,” Kinnear said in a research note.

As the war continues, Kinnear said both Tehran and Washington believe time is on their side, making a new truce unlikely for now.

“Oil and gas prices, and more specifically refined products such as diesel, will continue to tick upwards while that remains the case – even if US convoys and Strait of Hormuz export alternatives cushion the price impact,” Kinnear said.

The strategic importance of the Bab el-Mandeb Strait has grown significantly since the start of the U.S. and Israel’s war against Iran in late February, with the waterway emerging as an alternative route for crude moving toward Asia.

What next for oil prices?

Oil prices traded sharply lower on Friday, but both major benchmarks could still end the week above $100 per barrel for the first time since mid-May.

International benchmark Brent crude

The resilience of the oil market is being tested by a clearer recognition of the mounting threat to regional supply, strategists at ING said, with energy market participants seen repricing both the duration and severity of the conflict.

Even as flows continue through the Strait of Hormuz, ING’s strategists said flows remain well below prewar levels, underlining how fragile the situation has become.

“Saudi energy infrastructure and crude oil exports from the Red Sea are increasingly at risk, with the Houthis in Yemen targeting Saudi Arabia,” ING’s Warren Patterson and Ewa Manthey said in a research note published Friday.

“As the Houthis have taken control of the Red Sea port of Mokha in Yemen, recent events increase the threat to shipping around the Bab al-Mandeb Strait,” they added.

— Luke Fountain contributed to this report.

A range of equity market bubble indicators show that while the S & P 500 ‘s rally has further to run this year, its medium-term prospects look poor given how frothy the market has become, according to Capital Economics. “Most indicators suggest the AI equity boom is nearing an end,” Capital Economics’ senior market economist James Reilly said Thursday in a note. Capital has been more bullish than most on the stock market since mid-2023, reflecting a view that AI will be a transformative technology. Its year end-2026 S & P 500 forecast has consistently been above consensus. But the firm has also maintained that the AI-driven rally is a bubble that will eventually burst. To assess and spot a late-stage market bubble, Reilly looks at eight indicators including valuations, earnings, index concentration, equity issuance and foreign interest in U.S. equities. Some of those measures are already at or near levels that preceded previous stock market peaks. The analysis shows that while market variables such as earnings expectations look consistent with a market top, others such as volatility and leverage look slightly less alarming. Earnings stand out as the biggest warning sign. Expectations for S & P 500 earnings growth are around levels seen only at the peak of the dot-com bubble, while long-term EPS growth forecasts have surged to a record high. According to Reilly, the heavy concentration of this expected growth in the tech sector means that any signs of weakness in the tech firms’ earnings will weigh heavily on the index. Other indicators are also flashing warning signs. Index concentration is around dot-com-era extremes, net equity issuance has turned positive and foreign ownership of U.S. stocks is at a record high. Reilly said another wave of IPOs and share sales could be particularly significant, since similar issuance booms have historically coincided with market peaks. “On past form, this suggests that the end of the bubble is just months away, rather than years,” he said. Measures of leverage are not yet alarming compared to other factors, though the analyst warns that they are heading in a “concerning direction.” While volatility metrics look consistent with a mid -stage bubble, Reilly notes that constituent -level volatility isn’t as extreme as it was near the end of the dotcom boom. “While we continue to think that the S & P 500 will rally from around 7,650 now to 8,250 by end-2026 , we ultimately forecast it to fall back to 6,500 by end -2027,” he wrote. Those assumptions would equate to 8% upside this year and a 21% slide in 2027.

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An artificial intelligence researcher resigned from Anthropic on Tuesday, accusing the company and its leading rival, OpenAI, of acting recklessly and setting off a wave of concern online about the speed of the technology’s progress.

Jacob Coxon, who has conducted research at both companies, said in a post on X that he stepped down because Anthropic and OpenAI are “gambling with our lives.” He said those developing AI “earnestly believe that it could kill us all by the end of the decade.”

“Do not underestimate the power of this technology,” Coxon wrote. “These will soon be superhuman systems that can hack anything, revolutionize any field overnight, and acquire real power and resources.”

Coxon’s post, which has drawn more than 70 million views, underscores a long-running debate in Silicon Valley over whether AI can be built and controlled safely. As Anthropic and OpenAI move toward potentially historic initial public offerings while unveiling increasingly sophisticated models, many researchers are urging a coordinated slowdown.

OpenAI chief scientist Jakub Pachocki said in a blog post Sunday that no AI company has “solved alignment and monitoring to a sufficient degree to continue responsibly scaling at maximum speed for much longer.” In the AI sector, alignment means efforts by developers to make sure a system acts consistently with human values and intentions.

“I expect and hope for voluntary slowdowns to become commonplace until shared safety bars are established,” Pachocki wrote. “And I believe that international coordination on future AI development needs to become a top priority for governments around the world.”

Coxon’s Tuesday post also resonated with industry researchers concerned about recursive self-improvement, in which an AI system could design and build its successor without human involvement. Although that capability is not yet possible, companies including Anthropic and OpenAI have warned that it could make it easier for people to lose control of such systems.

“Neither company is acting responsibly,” Coxon wrote. “They are racing straight to self-improving superintelligence.”

Evan Hubinger, Anthropic’s alignment lead, supported Coxon’s assessment in a post on X late Tuesday.

“Jacob is correct here—we really do earnestly believe AI could kill all humans! I personally think it is >10% within the next decade,” Hubinger wrote. “I believe Anthropic is trying its best, but we do not yet have a plan to solve alignment for superintelligence and are not clearly on track to.”

Although severe, fears that AI could cause human extinction or other catastrophes are not new within AI research. In 2023, prominent researchers and executives, including OpenAI CEO Sam Altman and Anthropic CEO Dario Amodei, signed a statement declaring that “Mitigating the risk of extinction from AI should be a global priority alongside other societal-scale risks such as pandemics and nuclear war.”

Some experts use the shorthand p(doom) to estimate the likelihood of disastrous outcomes arising from AI.

Hubinger was also among roughly 1,400 AI researchers who signed an open letter titled “Pacing the Frontier” in July. The letter called on the U.S. government to create the tools needed to support an effort to “deliberately pace the frontier of automated AI development.”

Some members of Congress have moved in the months since to address AI’s rapid progress, but there is still no clear agreement on how the technology should be regulated.

In July, Rep. Jay Obernolte, R-Calif., and Rep. Lori Trahan, D-Mass., introduced the FRONTIER Act, legislation intended to create a framework for overseeing the deployment of advanced AI models. Earlier this month, Sen. Bernie Sanders, I-Vt., and Rep. Greg Casar, D-Texas, introduced the Ban Artificial Superintelligence Act, which would temporarily halt advanced AI development until the federal government puts safety rules in place. Both measures have received mixed responses.

“Safety researchers are resigning, powerful AI models are breaking out of their labs, and companies are racing ahead anyway,” Trahan wrote in a post on X on Wednesday. “It’s past time for Congress to get off the sidelines and do its job.”

Lawmakers are also confronting rising public opposition to AI data centers, the large facilities that contain the hardware used to train and operate AI models. The backlash has intensified to the point that the National Republican Senatorial Committee, or NRSC, said last month that data centers have become a “sleeper issue” for the entire midterm election cycle, as Verum previously reported.

Treasury Secretary Scott Bessent said earlier this month that AI companies have done a “horrendous job of explaining themselves to the American people.”

“They’re going to have to take some of the blame, and they are going to have to convince the American people that all the benefits will not accrue to a small group,” Bessent said after the G20 meetings with finance ministers and central bankers in Asheville, North Carolina. “That’s what they hear from me.”