11:48 AM EDT, 10/01/2026 (MT Newswires) -- European stock markets tumbled in Thursday trading as government bond yields and crude oil prices continued to rise.

The Stoxx Europe fell 1.2%, Germany's DAX dropped 0.9%, the FTSE 100 shed 1.7%, France's CAC lost 1.5%, and the Swiss Market Index declined 1.5%.

In corporate news, TotalEnergies is aiming to invest $10 billion in Argentina, including $4 billion to $5 billion over the next 10 years, Reuters reported Thursday, citing Chief Executive Patrick Pouyanne.

The investments will cover different projects, including a new offshore development in Tierra del Fuego and the expansion of its gas production facility in Neuquen, according to the report.

TotalEnergies did not immediately reply to a request for comment from MT Newswires.

Shares of the French oil and gas company dropped 1.4% in Paris.

UBS pushed back against a call from major shareholder Artisan Partners to consider moving its headquarters outside Switzerland, the Financial Times reported Thursday.

Artisan Partners, which holds about a 1.8% stake in UBS, urged the bank to consider relocating, citing proposed Swiss capital rules, according to the report. Artisan said the new rules could require UBS to increase common equity Tier 1 capital at its parent company from about $56 billion to $72 billion.

UBS said it plans to continue operating from Switzerland while advocating for targeted and internationally aligned regulation. The bank said the proposed 90% common equity tier 1 requirement would only require about $16 billion of additional capital at its parent bank, the report added.

"We take note of the open letter addressed to our Board of Directors," a UBS spokesperson said in an emailed response to MT Newswires. "As we have consistently stated, our goal is to continue operating successfully as a global bank from Switzerland. UBS will protect the interests of its shareholders by continuing to contribute facts and analysis to support informed decision-making and advocating for regulation that is truly targeted, proportionate and internationally aligned, and addresses the root causes of the Credit Suisse crisis."

Artisan Partners did not immediately respond to MT Newswires' requests for comments.

Shares of UBS lost 3.3% in Zurich.

Zealand Pharma said Thursday that Boehringer Ingelheim's survodutide achieved up to 13.1% average weight loss after 76 weeks in a phase 3 trial of adults with obesity or overweight and type 2 diabetes, compared with 3.1% for placebo.

The trial met its co-primary endpoints, with up to 79.3% of patients receiving survodutide achieving at least 5% weight loss versus 32.7% for placebo, the company said. Zealand said patients also saw improvements in blood sugar and waist size.

The drug remains experimental and has not been approved for use, according to Zealand.

Shares of Zealand shed 6.1% in Copenhagen.

Eni said Thursday it completed the restructuring of Plenitude's ownership with Ares Management and Energy Infrastructure Partners.

The company said the transaction values Plenitude at 10.75 billion euros ($12.13 billion) before the investment, or about 13.1 billion euros including debt, the company said.

Eni now owns 65.03% of Plenitude, Ares 26.24% and EIP 8.73%, the company said, adding that Plenitude's nine-member board will include five Eni appointees, three from Ares and one from EIP.

Eni said it will also appoint the CEO, while Ares will appoint the chairman.

Shares of the Italian oil and gas major were off 0.4% in Milan.

Nokia and ICEYE are collaborating on a partnership to develop broadband low Earth orbit satellite communications systems for governments, the companies said Thursday.

The applications would include military operations, border security, and emergency services, the companies said. The jointly developed communications systems would give governments ownership and control of the satellites and ground terminals, with the first products expected to be launched in 2028, the companies said.

Shares of the Finnish telecommunications company advanced close to 2% in Helsinki.

Barclays is expanding its artificial intelligence partnership with Amazon-backed Anthropic to integrate secure AI systems in its global operations, the company said Thursday.

The bank expects Claude Code adoption to reach 50% of its software developers by the end of the year and the vast majority of developers in 2027, the company said.

The assistant has handled more than 1 million searches since launching in 2025, it added.

Shares of the British lender declined 4% in London.

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