Global IPO Calendar: US and Europe Listings — 2026-09-18
The global IPO market remains bifurcated, with US proceeds hitting record highs driven by mega-deals like Anthropic, while European listings face valuation headwinds and a shrinking pipeline. In India, the National Stock Exchange (NSE) launched its massive IPO this week, drawing unexpected institutional demand despite a crowded primary market calendar. Meanwhile, SpaceX shares have stabilized near their debut price after a volatile first few months, signaling a maturing post-IPO landscape for high-profile tech listings.
Global IPO Calendar: US and Europe Listings — 2026-09-18
Top developments
Anthropic Targets $2 Trillion Valuation Amid Record US Proceeds
Anthropic is moving forward with its listing plans, targeting a valuation of up to $2 trillion, which would place it among the largest IPOs in history. While US IPO proceeds in 2026 have reached record highs due to such mega-cap entries, broader market data indicates that new stock performance has not strengthened in tandem with fundraising totals. This divergence suggests that while capital availability is high, investor appetite for high-valuation new stocks may be testing limits in September and October.
NSE IPO Draws "Unexpectedly Large" Demand Despite Crowded Calendar
The National Stock Exchange of India (NSE) opened its IPO subscription on September 17, 2026, raising approximately ₹22,562 crore (approx. $2.7 billion). Rediff.com reports that demand from institutional investors, including domestic mutual funds and foreign portfolio investors (FPIs), has been unexpectedly large. The listing faces competition from ten other public issues launching in the same week, but analysts believe the NSE’s dominant market position and scarcity value will help it retain investor attention despite the "traffic jam" in the primary market.
SpaceX Shares Stabilize Near Debut Price After Volatile Months
SpaceX (SPCX) stock has returned to a price close to its initial trading level after months of roller-coaster volatility following its June 2026 debut. The company had jumped 19% on its first day of trading to close at $161, but recent stabilization suggests the market is now valuing the company based on fundamentals rather than initial hype. This performance serves as a case study for the current "maturing" phase of the 2026 IPO cycle, where post-listing volatility is smoothing out for mega-cap tech names.
European Issuers Increasingly Eyeing US Listings for Liquidity
A growing number of European companies are planning to cross the Atlantic for IPOs, attracted by deeper liquidity pools and higher valuations for technology and growth businesses. This trend is exacerbating the decline of the London IPO market, where fundraising in early 2025 had already fallen to a three-decade low. Financial News reports that the outlook for London listings remains bleak, with many firms postponing plans to a potential 2027 window due to current market conditions.
Local view
India: Local financial media highlights the scale of the NSE offering, with Business Today noting that at the upper end of the price band, NSE’s market capitalization is estimated at around ₹4.42 lakh crore. The Economic Times focuses on the logistical challenge of the "IPO traffic jam," analyzing whether the sheer volume of concurrent issues will dilute demand for the flagship NSE deal.
France: In Paris, market attention shifted to index changes rather than new listings, with Boursorama reporting that Euronext’s Scientific Index Committee announced adjustments to CAC indices, though no major entries or exits were made to the CAC 40. Meanwhile, L'Oréal became the most valuable French company by market cap, surpassing LVMH, reflecting sector-specific trends that may influence future consumer-focused IPO valuations in Europe.
Context & numbers
The 2026 IPO market is pacing toward its strongest performance since the 2021 boom, with 331 new filings and 280 completed offerings year-to-date. However, this rebound is uneven; while US proceeds hit records, the London market continues to struggle with a significant decline in listings over the past decade. The divergence highlights a structural shift where capital concentration favors US exchanges, particularly Nasdaq, which has seen strong momentum from AI-related listings like Anthropic.
On the radar
- Anthropic Listing Timeline: Investors are watching closely for the specific pricing window for Anthropic, which could set a new benchmark for AI valuations if it proceeds at the rumored $2 trillion mark.
- London's 2027 Window: Several UK firms are reportedly delaying listings to 2027, waiting for a more favorable regulatory or economic environment to reverse the three-decade low in fundraising.
- Post-IPO Underperformance: Market watchers are tracking the "September Slump" effect, where recent 2026 IPOs are showing signs of bottoming out after initial declines, potentially creating entry points for value investors.
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