SK hynix Inc.

Samsung Electronics Co., Ltd.

OpenAI promises to supply two South Korean companies with demand for memory chips at twice the current global capacity 

Samsung shares hit 4-year high, SK Hynix hits record after OpenAI deal

Fermi

Elon Musk became the first whose fortune reached $500 billion. At the same time, his company SpaceX lost to OpenAI, which received a valuation of a similar amount - $500 billion - after the secondary sale of employee shares for $6.6 billion. Now the ChatGPT developer is the most expensive private company in the world. Thanks to the partnership with OpenAI, the quotes of South Korean Samsung and SK Hynix jumped up. These and other topics are in our review of the key events for the morning of October 2.

Top story for the morning: Musk's fortune hits $500 billion, OpenAI beats SpaceX in valuation

Amazon.com, Inc.

Meta Platforms, Inc.

Apple Inc.

To truly become a leader in AI devices, Amazon needs a technological breakthrough, according to Bloomberg.

Amazon showed off its updated AI devices. Will it be able to compete with Apple and Meta? 

Tesla, Inc.

There has been a wave of resignations in the business empire of the world's richest man 

"He's burning out deputies fast": FT has learned of the exodus of employees from Musk's companies

Electronic Arts Inc.

Robinhood Markets, Inc.

Donald Trump announced new duties on wood, furniture, pharmaceuticals and movies. OpenAI is booming revenue growth - $4.3 billion for the first half of 2025 - but is spending billions on AI development. In the U.S., Wealthfront, one of the pioneers of the robo-advisory market, is preparing for an IPO, and was never sold to UBS in 2022. These and other topics - in our review of key events for the morning of September 30.

Highlights for this morning: Trump's duties, OpenAI growth, Wealthfront going public

Oracle Corporation

Alibaba Group Holding Limited

Intel Corporation

Nvidia announced a strategic partnership with OpenAI and plans to invest up to $100 billion to create an "AI factory." Intel is in talks with Apple and TSMC to invest in its production. Oracle has placed $18 billion in bonds to cover the costs associated with the AI boom. US President Donald Trump imposed duties of 100% on drugs and approved a deal to sell TikTok to a pool of investors. About the main events from September 22 to 26 - in our review.

Highlights of the week: US gets TikTok, Intel seeks partners, Nvidia and OpenAI alliance

Oracle's cloud business model is different from what the other leaders - Amazon, Microsoft and Google - are doing

Analyst advises selling Oracle shares against its AI deals. The stock collapsed by 6%

Alphabet Inc.

Microsoft Corporation

Google remains "the benchmark in generative AI search" and is "no longer cautious," assured analyst firm MoffettNathanson

Alphabet could become the world's most valuable company, says analyst. What are the chances?

CoreWeave, Inc.

Cloud provider CoreWeave <a href="https://www.coreweave.com/news/coreweave-expands-agreement-with-openai-by-up-to-6-5b">said</a> it has signed a new $6.5 billion agreement with OpenAI, expanding its existing partnership with the ChatGPT developer. CoreWeave announced in March that it would provide OpenAI with data centers and AI technology for five years under the $11.9 billion agreement. In May, the amount was increased. now the total contract volume has reached $22.5 billion.

CoreWeave announced a new $6.5 billion agreement with OpenAI

NVIDIA Corporation

Microsoft has started using artificial intelligence from rival OpenAI, the maker of chat bot ChatGPT, in its products. The company <a href="https://www.microsoft.com/en-us/microsoft-copilot/blog/copilot-studio/anthropic-joins-the-multi-model-lineup-in-microsoft-copilot-studio/">announced on</a> September 24 that its AI assistant Copilot will now use the startup Anthropic's models along with those from OpenAI to answer some of its queries.

Microsoft taps ChatGPT competitor for AI assistant. Is the relationship with OpenAI deteriorating?

The scale of Nvidia's new commitment could attract the attention of antitrust regulators

"Investor of last resort": analysts saw bubble risks in Nvidia and OpenAI deal

Micron Technology, Inc.

Micron reported earnings above expectations and gave a strong outlook, citing demand for high-speed memory for AI chips. Tether is preparing a record $15-20 billion round that could value the issuer of the largest stablecoin at $500 billion - on par with OpenAI and SpaceX. In the US, Donald Trump's plans to charge $100,000 for each H-1B visa application have alarmed the startup community. These and other topics are covered in our review of key events on the morning of September 24.

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