President Donald Trump vowed the “most crushing” financial operation ever as it prepared to roll out economic sanctions on Monday that target Iran’s trade partners.
Iran in turn vowed to shut down all oil exports from the Gulf “if the economic war continues.”
The warring nations have not conducted military strikes against each other for weeks, but they also have not engaged in meaningful talks to end the six-month-old conflict.
Thousands of people have died, most of them in Iran and Lebanon, since the U.S. and Israel began strikes on February 28, degrading much of Iran’s conventional military capacity and inflicting economic pain while killing Iranian Supreme Leader Ayatollah Ali Khamenei.
As a result, oil prices fell on Monday as investors braced for details of a US plan to isolate the Iranian economy. Both main crude contracts were down 2.3 per cent, with the Brent benchmark sitting at $92 a barrel.
Asian stocks were mostly down in early trading, with South Korea’s tech-rich Kospi falling 1.4 per cent after Samsung Electronics said it spent a massive $80 billion to buy back its own shares following weeks of turbulent trading.
The chip giant’s shares, along with those of rival SK hynix, peaked in June on optimism for the artificial intelligence boom, but have since fallen amid investor jitters and a broader tech rout.
In an important week for AI, investors are also looking towards an earnings report from Nvidia, the world’s most valuable company and a bellwether for the sector.
The recurring question for the US chipmaker is whether the AI boom will continue to accelerate as the technology takes over more corners of the broader economy.
“The spending machine is still running, but the bill is getting heavier,” said Stephen Innes of SPI Asset Management.
“Nvidia must now show that the most expensive investment boom in modern market history can still pay its bills.”
Chinese tech giant Alibaba is keeping focus on the sector after announcing on Sunday that it plans to issue $10.2 billion in new shares in Hong Kong to fund its global AI ambitions.
The firm, known for its open-source “Qwen” AI models, has been ploughing tens of billions of dollars into the technology, with shareholders eager to see how it will monetise the huge investments.
Tokyo, Shanghai, Taipei and Wellington were down on Monday. Sydney, Jakarta and Bangkok posted gains, while Manila and Kuala Lumpur were flat.
Hong Kong fell more than two per cent despite fast-fashion giant Shein announcing its market debut will take place in the Chinese financial hub on September 1.
The long-awaited listing would value the group — known for its vast selection of products at stunningly low prices — at close to $27 billion.
Eyes are also on US Treasury boss Scott Bessent, who said he would give more details in a news conference on Monday on a fresh push to pile economic pressure on Iran.
The United States warned allies and China on Thursday to join Trump’s new campaign, which comes as the unpopular war in the Middle East drags toward the six-month mark.
US Vice President JD Vance admitted the plan was a “delicate dance” because Iran will “try to apply economic pressure to us”.
Asked whether the United States would pressure China, Bessent told CNBC that “many conversations are best to have in private”, but called on Beijing “to get with the programme”.
This handout photograph provided by the Iranian supreme leader’s office (Khamenei.
Prayers were held July 5 over the casket of Iran’s late supreme leader Ali Khamenei, the second day of funeral ceremonies that have drawn huge crowds to pay their final respects in Tehran. Photo by – / KHAMENEI.IR / AFP
Traders will also be watching this week’s annual gathering of central bankers, economists and finance chiefs in Jackson Hole in the United States, hoping for some clarification on US monetary policy.
The meeting comes after the Treasury bought its own bonds last week in an effort to push down borrowing costs after the 30-year yield surged to levels last seen in 2007, just before the global financial crisis.
Yields have risen on inflation fears and as the United States reported that its federal debt had topped $40 trillion.
This US Marine Corps handout photograph taken on July 16, 2026, by US Central Command Public Affairs reportedly shows an Iranian flag flying behind a US Marine from the 11th Marine Expeditionary Unit during a verification boarding aboard M/T Wen Yao in the Gulf of Oman.
This US Marine Corps handout photograph taken on July 16, 2026, by US Central Command Public Affairs reportedly shows an Iranian flag flying behind a US Marine from the 11th Marine Expeditionary Unit during a verification boarding aboard M/T Wen Yao in the Gulf of Oman.
Key Figures At Around 0215 GMT
Tokyo – Nikkei 225: DOWN 0.3 per cent at 65,799.25
Hong Kong – Hang Seng Index: DOWN 2.1 per cent at 25,455.95
Shanghai – Composite: DOWN 0.5 per cent at 3,887 .81
London – FTSE 100: UP 0.6 per cent at 10,816.56 (close)
Dollar/yen: DOWN at 158.82 yen from 159.03 yen on Friday
Euro/dollar: UP at $1.1684 from $1.1679
Pound/dollar: UP at $1.3651 from $1.3647
Euro/pound: UP at 85.59 pence from 85.58 pence
West Texas Intermediate: DOWN 1.9 per cent at $85.39 per barrel
Brent North Sea Crude: DOWN 1.8 per cent at $92.68 per barrel
AFP





