(Bloomberg) -- GlobalFoundries Inc., backed by Mubadala Investment Co., fluctuated in its trading debut, falling as much as 5.3% before rebounding up to 2.1%.

The chipmaker’s shares began trading Thursday at $47, the price in its initial public offering. The shares were selling for $46.99 at 12:12 p.m. in New York, giving the company a market value of about $25 billion.

The company and Mubadala sold 55 million shares Wednesday for $47 each after marketing them for $42 to $47. 

The listing is the third biggest on a U.S. exchange this year, topped only by South Korean ecommerce firm Coupang Inc.’s $4.55 billion IPO and Chinese ride-hailing company DiDi Global Inc.’s $4.44 billion raise, according to data compiled by Bloomberg. That doesn’t include blank-check and similar companies.

GlobalFoundries had planned to sell 33 million shares while Abu Dhabi’s Mubadala was to sell 22 million shares, according to its filings with the U.S. Securities and Exchange Commission.. That mix was modified, according to a statement, with the company selling 2.75 million fewer shares than planned and Mubadala making up the difference. Mubadala was to control about 89% of the company’s shares after the IPO.

Funds managed by BlackRock Inc., Columbia Management Investment Advisers, Fidelity Management, an affiliate of Koch Industries Inc. and Qualcomm Inc. also had indicated interest buying a combined $1.05 billion of the shares in the offering as cornerstone investors, the filings show. 

Silver Lake separately had agreed to purchase $75 million of stock in a concurrent private placement at the IPO price.

The chipmaker was created by purchasing the manufacturing operations of Advanced Micro Devices Inc. in 2009 and later combining it with Singapore’s Chartered Semiconductor. Mubadala was planning for the business to be valued in a listing at around $30 billion, Bloomberg News reported in July.

Chip Shortage

GlobalFoundries is appealing to public-market investors as interest in the semiconductor industry hits an all-time high. Shortages caused by a surge in demand for electronics during coronavirus pandemic lockdowns and insufficient supply have made chip factories more valuable to the economy.

For the first half of the year, GlobalFoundries had a net loss of $301 million on revenue of about $3 billion, compared with a loss of $534 million on $2.7 billion in revenue a year earlier, according to the filings.

Contract chipmakers like GlobalFoundries fabricate semiconductors for large technology companies such as Apple Inc. and Amazon.com Inc. Taiwan Semiconductor Manufacturing Co. and Samsung Electronics Co. currently dominate the market, and Intel Corp. has ambitions to become a bigger force in that area too.

GlobalFoundries previously gave up on the kind of leading-edge production that would match the capabilities of Taiwan Semiconductor or Samsung. Instead, it’s serving the market for less advanced chips, which are increasingly critical to carmakers and other industries.

The IPO is being led by Morgan Stanley, Bank of America Corp., JPMorgan Chase & Co., Citigroup Inc. and Credit Suisse Group AG. The company’s shares are trading on the Nasdaq under the symbol GFS. 

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