ChatGPT developer OpenAI plans to raise as much as $100 billion in a new investment round, which could give the company a valuation of up to $830 billion, The Wall Street Journal <a href="https://www.wsj.com/tech/ai/openais-new-fundraising-round-could-value-startup-at-as-much-as-830-billion-93de9f7c">reported,</a> citing sources. If it manages to get the full target amount, that would make it the most expensive startup, allowing it to overtake Elon Musk's SpaceX again, which <a href="https://oninvest.com/article/spacex-podorozala-ilon-mask-stal-pervym-celovekom-v-mire-s-sostoaniem-vyse-600-mlrd">started a </a>new round of equity sales at a valuation of $800 billion.

New investor OpenAI could value it at $830 billion - WSJ. That's more expensive than SpaceX

Microsoft Corporation

Broadcom Inc.

CoreWeave, Inc.

A rise in the valuation of developer ChatGPT could push up quotes for a number of tech stocks

OpenAI is preparing to raise investment with a $750 billion valuation. Who will benefit?

Amazon.com, Inc.

If negotiations are successful, OpenAI's valuation could exceed $500 billion

Amazon is in talks for a multi-billion dollar investment in OpenAI and AI chip shipments

Meta Platforms, Inc.

NVIDIA Corporation

Apple Inc.

Netflix, Inc.

Warner Bros. Discovery, Inc.

Michael Burry continues to criticize Big Tech, now for hidden costs and diluting shareholder capital. Samsung has shown technology leadership by releasing an experimental TriFold before the debut of the foldable iPhone, and OpenAI has introduced a "code red" mode to urgently improve ChatGPT. Meta, meanwhile, is preparing for major layoffs. The main events from December 1 to December 5 are in our review.

Highlights of the week: Burry vs. Big Tech, OpenAI improves ChatGPT, cuts at Meta

The listing of OpenAI's main competitor in the enterprise segment could take place in 2026

Chatbot developer Claude Anthropic has hired lawyers to prepare for IPO - FT

Alphabet Inc.

The head of developer ChatGPT announced an emergency mode of work in the company to improve the chatbot

OpenAI has declared a "code red". Google threatens to take away its leadership in the AI race

Oracle Corporation

There is virtually no debt on OpenAI's own balance sheet

OpenAI partners have racked up $100bn of debt to fund the startup's ambitions - FT

Alibaba Group Holding Limited

Qwen chatbot is Alibaba's first attempt at large-scale expansion in the consumer AI segment

Alibaba's "ChatGPT killer" has been downloaded 10 million times in its first week. How is the market reacting?

Target Corporation

Walmart Inc.

Target shares were down 3% at the moment in trading on Nov. 19

Target lowered its profit forecast due to shopper savings. Will ChatGPT help?

Cloudflare, Inc.

American hosting provider Cloudflare, whose services are used by hundreds of thousands of companies around the world, faced a large-scale failure. Among those affected were chatbot ChatGPT, rating agency Moody's and social platform X - their sites on Tuesday partially blocked access for users, <a href="https://www.bloomberg.com/news/articles/2025-11-18/chatgpt-x-among-sites-blocked-in-widespread-cloudflare-outage">writes</a> Bloomberg.

Cloudflare's failure disrupted ChatGPT and Social Network X

BETA Technologies, Inc.

BillionToOne

Evommune, Inc.

OpenAI management denied rumors of an imminent listing. Electric airplane developer Beta Technologies held an oversized listing in New York for more than $1 bln. Unilever scheduled an initial public offering of its Magnum ice cream business for December, which was previously postponed due to the US government shutdown. The main events in the IPO market over the week are in our selection.

OpenAI isn't thinking about an exchange, "Tesla in the sky" raised $1 billion: the main thing about the IPO by Nov. 9

MapLight Therapeutics, Inc.

Navan, Inc.

OpenAI is preparing one of the most expensive public offerings in history, and one of the world's largest manufacturers of medical devices Medline has applied for a placement with a possible valuation of up to $ 50 billion. In addition, after a long pause is observed a revival of the British IPO market, but so far the dynamics of shares of recently listed companies remains ambiguous. The main events on the IPO market for the week are in our selection.