Anthropic IPO: Could Another Mega IPO Trigger a Stock Market Sell-Off?

Anthropic is reportedly preparing for an IPO in the week of November 16. With the AI industry attracting enormous amounts of capital and valuations reaching unprecedented levels, one important question deserves attention: can the stock market absorb another major IPO without putting additional pressure on existing stocks?

The answer depends on how investors respond, but there is one important risk that shouldn’t be overlooked. When a major company goes public, the money invested in its shares has to come from somewhere.

And in an already expensive market, that could become a problem.

Can the Stock Market Absorb Another Major IPO?

A major IPO attracts significant attention and potentially billions of dollars in investment. Investors who want to participate need capital, and that capital has to come from somewhere.

Some investors will use new money. Others will sell existing investments to free up cash for the IPO.

That creates a potential risk for the broader stock market. If investors begin reallocating capital away from existing stocks and into a highly anticipated IPO, selling pressure could increase across other parts of the market.

One major IPO doesn’t automatically cause a market correction. However, when valuations are elevated and investor enthusiasm is already running high, additional demand for capital deserves attention.

The important question isn’t simply how much a company is worth. It’s how the market responds when another enormous investment opportunity arrives.

World Online and the Dot-Com Crash of 2000

To understand why I pay attention to major IPOs, it’s worth looking back at the dot-com bubble.

In 2000, World Online went public in one of the most prominent IPOs in the Netherlands. The company was valued at approximately €12 billion at its IPO, making it a major listing at the time.

The IPO took place near the peak of the dot-com bubble, when investor enthusiasm for internet companies was extremely high.

The subsequent collapse of technology stocks was driven by a combination of factors, including excessive valuations, speculative investment, and concerns about the sustainability of many business models. World Online’s IPO did not single-handedly cause the crash, but it became part of the broader story of the bubble’s final stages.

The comparison with today’s AI market is not exact. However, it illustrates why major IPOs and investor enthusiasm are worth watching when markets are already stretched.

Anthropic Is Different From Many Dot-Com Companies

There are important differences between the dot-com bubble and today’s AI boom.

Many internet companies in 2000 had limited revenues, uncertain business models, and little evidence that they could eventually generate sustainable profits.

Today’s leading AI companies operate in a different environment. AI products are generating real demand, and the technology is already being used by businesses and consumers. Anthropic has established a substantial business around its AI models and services.

That doesn’t mean every AI valuation is justified, or that investors are protected from significant losses.

A company can have real revenue, strong growth, and a promising future while still being valued too aggressively by the market.

A great company is not automatically a great investment at every price.

This is why I don’t believe the comparison with 2000 needs to be perfect for the current market to carry meaningful risk. The underlying businesses are different, but investor behavior, capital allocation, and excessive expectations still matter.

Why the Size of the Anthropic IPO Matters

The potential scale of a major AI IPO is another important consideration.

World Online’s approximately €12 billion IPO valuation was enormous for its time. Today, the valuations discussed for leading AI companies are on an entirely different scale.

If Anthropic eventually goes public at a very large valuation, investors will need to decide how much capital they want to allocate to the offering.

The larger the offering, the more attention it could attract and the more important its potential impact on capital allocation becomes.

However, the company’s valuation should not be confused with the amount of money it raises. The valuation reflects the implied value of the company, while the amount raised depends on how many shares are sold

Educational content only. Trading involves substantial risk. The setup grade and outcome described here are specific to my plan, sizing, and risk tolerance. Do your own work.