NVIDIA CorporationNvidia's board authorized an additional $150 billion buyback, lifting total authorization to $235 billion.
Nvidia shares rose after its board authorized an additional $150 billion under the company's existing share-repurchase program, increasing the total remaining amount authorized to $235 billion, with the AI chip leader expecting to complete the program through fiscal 2028. In the mining sector, Australia's Northern Star Resources Ltd. rejected a takeover approach from South African rival Gold Fields Ltd. that could have created the second-largest gold miner, saying the A$38.7 billion ($27.1 billion) cash-and-shares offer undervalued its business. Gold Fields shares fell as much as 16% on the proposal, while precious-metal miners also slid as gold and silver dropped, with Barrick Gold down 4% and Freeport-McMoRan down about 3.5%. Roblox was cut to underperform from hold at Jefferies, which said the stock's 30% rally since the gaming company's second-quarter results in July reflects an overly optimistic view of bookings for the next 12 months; the shares fell 5% and are down 43% so far this year. Nvidia also rolled out a new double-layered AI security system that it says would have prevented the recent high-profile breach of Hugging Face by OpenAI's models, and China may allow Alibaba and ByteDance to buy Nvidia's new RTX Pro 5500 chips.
NVIDIA CorporationNvidia's board authorized an additional $150 billion buyback, lifting total authorization to $235 billion.
Alibaba Group Holding Ltd
Astera Labs, Inc.
Barrick Mining CorporationBarrick Gold fell 4% as gold and silver prices dropped, pressuring precious-metal miners.
Freeport-McMoran Copper & Gold Inc
Gold Fields Ltd ADRGold Fields shares fell as much as 16% after Northern Star rejected its A$38.7 billion takeover offer.
Roblox CorpJefferies cut Roblox to underperform, saying its 30% rally reflects overly optimistic bookings expectations.
RTX CorporationNorthern Star rejected Gold Fields' A$38.7 billion takeover offer, saying it undervalued the business.