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Tesla stock rebounded early Tuesday as CEO Elon Musk reminded investors about where his EV company started and how far it’s come. The move came after Musk tweeted that Tesla’s IPO market cap was only 0.1% of its current market cap. The tweet also comes just ahead of SpaceX’s massive IPO, which is expected to raise a record amount of cash, and could value the rocket company at $2 trillion.

Stocks often pop on their first trading day, but larger IPOs tend to the S&P 500 over time.

The firm behind the Claude chatbot revealed on Monday it had filed paperwork for an expected 1.0 trillion US dollar IPO.

Yardeni expects strong retail demand for the AI-3 IPOs, noting that brokers have already begun inviting clients to participate in the SpaceX offering.

SpaceX may be impressive, but investors should also weigh the downside risk.

Tesla influencer AleXandra Merz said that a 50/50 SpaceX-Tesla merger could revalue Tesla from $1.6 trillion to $2.05 trillion.

40% of nearly 1,000 major companies surveyed by Bain & Company found cost reductions from AI use of just 10% or less.

A logjam of unsold assets has buyout firms eager to list, but mixed debuts and erratic markets keep windows for new issues narrow.

AI giant Anthropic said on Monday it has confidentially filed for a U.S. initial public offering, teeing up a watershed moment for Wall Street's AI frenzy. Tech stocks continue to lead the Nasdaq Composite and S&P 500 in a record-breaking market rally, while Elon ‌Musk's SpaceX is set to price its IPO this month and Anthropic rival OpenAI, led by Sam Altman, is waiting on deck. U.S. stocks were ‌mixed on Monday afternoon, with the Nasdaq up 0.3%, the S&P 500 up 0.1% and the Dow industrials off 0.3%.

Anthropic has taken its first formal step toward a public listing, confidentially submitting a draft S-1 registrati...

Zoom Communications stock jumps after Anthropic files confidentially for its IPO. Is Zoom’s early Anthropic investment about to pay off?

SpaceX just filed its S-1 ahead of what could be the largest IPO in history.

The STB accepted the railroads' application but flags the proposed deal's "unclear and underdeveloped" aspects.

SpaceX's amended filing details its directed share program, Anthropic compute deal and new water scarcity risk.

The filing follows a $965 billion Series H valuation.

Quantinuum lifts its planned Nasdaq IPO after raising both share count and price range.

Cerebras offers a new way to play the AI boom through chips.

Zoom Communications stock jumped more than 12% on Monday, boosted by Anthropic’s IPO buzz and the launch of its new agentic AI workspace.

HSBC is rebuilding its Hong Kong dealmaking push as IPO activity could top $43 billion in 2026.

Abel took the reins of Berkshire at the start of the year, and he's been fairly active since.

A potential IPO from SpaceX (NASDAQ:SPCX) could dramatically reshape the history of global public offerings, with the Elon Musk-led company reportedly targeting a valuation that would eclipse every previous stock market debut. If current expectations hold, SpaceX could raise far more capital than any company before it and potentially become the first IPO to debut with a valuation approaching $2 trillion.

SpaceX’s (NASDAQ:SPCX) newly released investor prospectus has offered the public its clearest look yet at the finances, ambitions and internal workings of Elon Musk’s flagship company ahead of its planned $1. 75 trillion stock market debut next month.

Quantinuum is set to make the biggest trading debut for any quantum company this year. As anticipation rises, the company is upsizing its initial public offering to as much as $1.46 billion. Quantinuum indicated Monday that it plans to offer 26.5 million shares at prices ranging from $53 to $55 each, compared with earlier plans to sell roughly 21 million shares for $45 to $50 each.

Media reports and even people betting on Kalshi continue to see an increasing likelihood that all of Elon Musk's companies could soon merge.

➕ Follow Luke on X 📺 Check out our podcast: Being Exponential Editor’s Note: Cerebras just went public… and SpaceX, Anthropic, and OpenAI — representing over $3 trillion in combined valuation — are lined up behind it. A lot of investors are getting excited about this AI IPO boom, but veteran trader Jonathan Rose thinks that excitement is a trap. I invited him to share his thoughts with us, using the collapse of Figma stock after its IPO as the blueprint. What’s especially intriguing is where the

Wedbush analyst Dan Ives believes there is better than an 80% chance Tesla and SpaceX merger in 2027.

The Caesars deal just put a clock on the rest of corporate America. On May 28, 2026, Caesars Entertainment (NASDAQ: CZR) announced a definitive agreement to be acquired by Fertitta Entertainment in an all-cash transaction valued at approximately $17.6 billion, including the assumption of approximately $11.9 billion of Caesars’ outstanding debt. Shareholders take home $31.00 ... After Caesars Deal, These 4 Struggling Companies Look Ripe for Acquisition

Stock Market Today: The Dow Jones index rose Monday amid ongoing hopes for a U.S.-Iran deal. Nvidia stock jumped on a new chip.

Union Pacific (NYSE: UNP) and Norfolk Southern (NYSE: NSC) sit on opposite ends of the largest rail deal in U.S. history: a stock-and-cash transaction valued at $320 per share and $85 billion in enterprise value. The Surface Transportation Board (STB) accepted the revised application on May 28, 2026, then paused the review to request more ... Union Pacific vs Norfolk Southern: Which Side of the Megamerger Should You Own?

A new Fortune analysis gauges what a merger would mean financially.