WASHINGTON, D.C. — A wave of hesitation has swept Wall Street as a cluster of high‑profile IPOs stalled this month, with artificial‑intelligence firm Anthropic postponing its $4 billion debut and several other listings pulled or delayed amid tepid demand and valuation anxiety.

In the United States, at least 12 companies filed to go public in the last quarter, but only three have moved forward with pricing, according to data from Renaissance Capital. The slowdown follows a string of postponed offerings, including the much‑anticipated listings of fintech startup Instacart and semiconductor designer Arm, both of which cited “unfavourable market conditions.” Analysts note that the average target valuation for these deals has slipped from $3.5 billion to roughly $3.2 billion, reflecting investor wariness.

“We are seeing a more cautious approach from investors,” said Jane Doe, senior research analyst at Morgan Stanley. “Valuation gaps that were once accepted are now being scrutinized heavily, especially for companies with limited revenue histories.” Underwriters have narrowed price ranges on several filings, and some have withdrawn their support entirely, prompting issuers to reconsider timing or to explore alternative capital‑raising methods.

The regulatory backdrop adds another layer of complexity. The U.S. Securities and Exchange Commission has intensified its review of disclosures related to AI‑driven business models, prompting firms like Anthropic to delay until they can satisfy heightened scrutiny. “The delay by Anthropic underscores the pricing challenges and the need for clearer guidance on emerging technologies,” noted John Smith, partner at boutique advisory firm Lattice Partners.

Globally, the chill is reverberating across markets. European exchanges reported a 15 percent drop in IPO pipeline activity compared with the same period last year, while Asian investors are showing increased preference for secondary offerings over primary listings. The ripple effect could tighten capital availability for growth‑stage companies, forcing many to rely on private funding rounds that often come with stricter terms.

Key Takeaways

• IPO pipeline in the U.S. shrinks as high‑valuation deals face heightened scrutiny.
• Valuation pressure persists, with average target valuations falling by roughly 8 percent.
• Investors demand stronger fundamentals and clearer regulatory pathways before committing.

The market’s cooling trend suggests that companies may need to adjust expectations, prioritize profitability, and engage more deeply with regulators to secure investor confidence in the coming months.