Nvidia says it has not been subpoenaed by the Justice Department

One day after Nvidia NVDA has been subpoenaed by the US Department of Justice in its antitrust investigation, the chip maker says it hasn’t actually been subpoenaed.

“We have checked with the US Department of Justice and have not been subpoenaed,” an Nvidia spokesperson said in a statement to Quartz on Wednesday. “However, we are happy to answer any questions regulators may have about our business.”

It was reported that the chip maker was quoted by US officials on Tuesday by Bloomberg, which cited anonymous people familiar with the matter. The Justice Department also reportedly subpoenaed other companies for evidence after complaints that the chipmaker may be violating antitrust laws.

In June, the Department of Justice and the Federal Trade Commission reached an agreement to conduct antitrust investigations in Nvidia and fellow AI industry leaders Microsoft and OpenAI.

US officials are concerned about complaints that include how Nvidia has made it difficult for customers to work with other chip suppliers. The Justice Department reached out to the chipmaker’s competitors, including Advanced Micro Devices and AI chip startups, to gather information, including about allegations of threatening customers which buys products from competitors and about Nvidia’s recent acquisitions of AI software startups, The Information reported in August, citing unnamed people familiar with the matter.

“Nvidia wins on merit, as reflected in our benchmark results and value to customers, who can choose whichever solution is best for them,” an Nvidia spokesperson said in a previous statement shared with Quartz.

Shares of the chipmaker fell in after-hours trading on Tuesday, according to the Bloomberg report. However, its shares were already down 9.5% at market close, resulting in a loss of $279 billion in market capitalization – the biggest drop in market value ever in a single day for a US company, according to Reuters. Meanwhile, Nvidia CEO Jensen Huang lost about $9.8 billion from the plunge, according to Bloomberg.