The British champion of microprocessors Arm, a subsidiary of Japanese SoftBank, has officially launched its process of IPO on Wall Street, an operation which could become the most important in technology since that, pharaonic, of Chinese Alibaba. While “the number of shares and price range have yet to be determined,” according to a statement released on Monday, documents released by the group confirm that SoftBank Group recently bought the 25% of Arm for some $16.1 billion. which were held by its Vision Fund unit.

That values ​​the entire company at more than $64 billion, roughly double the price of its 2016 acquisition by the Japanese group. The initial public offering (IPO) could take place in September, according to the press, and it could be the biggest operation of its kind this year, and one of the most important in the sector of the “tech” since that of Alibaba on Wall Street in 2014, which then brought in $25 billion.

According to preliminary IPO documents, filed with the US Stock Exchange (SEC) on Monday, “Semiconductor technology has become one of the world’s most critical resources because it enables ’today all electronic devices work’.

The company is a world reference in the architecture of semiconductors subsequently manufactured under license for almost the entire global smartphone market. Its processors have “provided advanced computing to more than 99% of smartphones in the world” in 2022, she says, also estimating that “about 70% of the world’s population uses Arm-based products” and that the reach of the company continues to expand. The documents filed Monday by Arm aim to provide precise information on the group’s financial situation before specifying the price per share and the share of capital that will be open to investors.

Although based in the United Kingdom, Arm had announced in early March its intention to carry out its IPO in the United States, to the chagrin of the London financial center where it was listed until 2016. The formalization of the operation “ will reinforce the disappointment that London has been shunned”, while the company “was widely considered a British success story”, but “SoftBank is not in sentiment and wants its money”, said Susannah Streeter, analyst at Hargreaves Lansdown.

However, the company will keep its headquarters in Cambridge and could subsequently consider a second listing on the London Stock Exchange. Founded in 1990, Arm has been owned by SoftBank Group since 2016. The Japanese investment giant had announced its intention to relist Arm on the stock exchange after the failure in early 2022 of the sale of Arm to the American Nvidia due to ” significant regulatory hurdles”.

“The Japanese conglomerate was waiting for the best market conditions and, while they seem a bit more lenient compared to the volatility that hit the tech sector last year, recent summer weakness is clearly pushing the company to list Arm on as soon as possible,” according to Susannah Streeter.

SoftBank’s $60+ billion valuation wasn’t obvious until earlier this year but now looks achievable as the global tech industry rides on the artificial intelligence euphoria generative, an area in which Arm intends to play a strategic role.

“The AI ​​boom, led by companies like Nvidia and services like ChatGPT, which is expected to drive higher demand for advanced AI-related chips and chip architectures, will benefit Arm.” early August analyst Douglas Kim in a note on the Smartkarma platform. Many tech giants such as Nvidia, Apple, Samsung Electronics and Intel would be in line to invest in Arm once the company is listed, according to the press.

SoftBank Group is counting heavily on the IPO of Arm to restore its image after having experienced many disasters in its investments in recent years, such as the American giant of shared offices WeWork.