Quarterly market debut research · Q4 2026
IPO Market Debuts: Q4 2026
Announced Q4 debut dates as of October 1: one scheduled NYSE SPAC IPO, with actual trading not yet independently confirmed. No additional dated NYSE or Nasdaq debuts were verified.
1 companies · 0 trading · 1 scheduled
As of
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1. Southport Acquisition Corp. II (PORT.U · NYSE)
Expected first trade (not confirmed): · Status: Scheduled · Offering type: SPAC / blank-check IPO
Explore what Southport Acquisition Corp. II does
What they do, in plain English
Southport Acquisition Corp. II is a blank-check company: it raises money to look for another business to buy or combine with. It does not have an operating product of its own, so investors are funding an acquisition search rather than a company already serving product customers.
Who it's for
It has no operating product or product customers while it searches for a target; public investors hold its units, and any future operating customers would belong to the company it combines with.
How it operates
It raises IPO proceeds through units, holds public investors' money in trust while searching for a business combination, and would become part of the combined company if a transaction closes. The warrants in its units provide a right to buy shares after a deal under the prospectus terms.
What to understand
The September 2026 prospectus said Southport had not selected a target or begun substantive target discussions and could pursue any industry or geographic area. It is therefore not accurate to assign it a current operating business or a sector focus.
Business overview sources
SPAC IPO of units, not an operating-company IPO. The issuer's Sept. 30 pricing release says the NYSE listing under PORT.U is expected to begin trading Oct. 1; this is an expected, not guaranteed, date. On the fetched NYSE Corporate Actions page, the Oct. 1 IPO action remains 'Pending before the Open.' No authoritative actual-commencement confirmation or reliable Oct. 1 trade/quote evidence was found, so this is classified as scheduled, not trading. Each unit comprises one Class A ordinary share and one-half warrant; the issuer said the components are expected to trade separately as PORT and PORT.W after separation.
Sources
Methodology
Cutoff is Oct. 1, 2026; period is Oct. 1-Dec. 31, 2026. Included only NYSE/Nasdaq primary listings supported by an issuer pricing/date release or exchange announcement that identifies date, ticker and venue, then fetch-checked the primary source, exchange action/calendar record and prospectus/prospectus filing for offering type. A proposed or estimated date in a filing/calendar alone does not establish a scheduled debut. Classified an entry as trading only with independent actual-commencement evidence; if the exchange action remained pending and no reliable actual trade/quote evidence was found, classified it as scheduled. Scheduled dates are expectations, not guarantees. Limited offeringType to operating-company IPOs and SPAC IPOs.
Coverage
Southport Acquisition Corp. II is the only dated Q4 NYSE/Nasdaq first trade identified with primary issuer/exchange support as of Oct. 1. Its announced Oct. 1 date is retained as scheduled because NYSE Corporate Actions still shows the IPO action as pending and actual trading could not be independently verified. No additional dated Q4 first-trading dates after Oct. 1 could be confirmed from primary issuer/exchange announcements; undated or estimated calendar entries are omitted.
Important note
Informational research only, not investment, legal or financial advice. Announced first-trading dates are expectations and may change, be delayed or be withdrawn. Scheduled does not mean shares are already trading; this status reflects evidence available on the research date, not a live market feed. This report is selected coverage, not a complete Q4 calendar. Exchange listing does not imply stock-index membership.