The FTC has sent information demands to third parties, according to Bloomberg.
The FTC and Nvidia did not respond to requests for comment outside regular working hours.
Nvidia struck a deal with Japan's SoftBank Group in September to buy UK-based chip designer Arm Holdings for as much as $40 billion (roughly Rs. 2,90,365 crores).
Arm Holdings supplies intellectual property to Apple, Qualcomm and a host of others for chips that power nearly all of the world's smartphones.
Earlier in January, Britain's Competition and Markets Authority said it would start an investigation into Nvidia's deal to buy Arm.
© Thomson Reuters 2021
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