Amazon’s drone program, called Prime Air, was announced by founder Jeff Bezos in 2013. But since then the projects has been delayed by technical and regulatory problems.
Muddy Waters Research called Joyy a "multibillion-dollar fraud" after the Nasdaq-listed Chinese firm struck a $3.6 billion deal to sell its unit to Baidu.
The Chinese social network and games giant took part in a round of funding that raised $50 million for the San Francisco-based startup, which was valued at $3.25 billion before the new investments.
Nvidia's gaming business boomed during its fiscal third quarter, while its data center unit continued to emerge as a pillar of the chipmaker's business.