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SPACs · Sep 8, 2026

SPAC Market Update September 8, 2026: CAPN Ends Mango Merger, Sets Sep 23 Extension Vote

Cayson Acquisition Corp (CAPN) terminated its Mango merger on September 8, 2026, with Mango set to reimburse expenses through a convertible promissory note. Separately, CAPN set a September 23, 2026 extension vote as it resumes its target search.

SPAC IPO Update — September 8, 2026

No SPAC IPOs priced on September 8, 2026; September MTD now stands at 1 IPO totaling $100M over 8 sessions.

SPAC IPO Count

Monthly IPOs (last 13 months)
Latest: 1•Prior: 12•MoM: -11
14
Sep ’25
14
Oct ’25
10
Nov ’25
22
Dec ’25
24
Jan ’26
27Peak
Feb ’26
11
Mar ’26
16
Apr ’26
20
May ’26
19
Jun ’26
18
Jul ’26
12
Aug ’26
1
Sep ’26
Source: Boardroom Alpha
IPO Activity SnapshotMonth-to-date: 1 IPOs ($100M) vs. first 8 days of last month 5 ($650M) · 12-mo avg: 17/mo
New SPAC IPOs
Date Ticker Issuer IPO Size Trust Funding
Sep 01 TLAC THREE LIONS ACQUISITION CORP $100M 100.5%
Source: Boardroom Alpha

Daily SPAC Update — September 8, 2026

SPAC DEAL & EXTENSION VOTES SET
Cayson Acquisition Corp (CAPN) * EXTENSION VOTE SET: September 23, 2026 * trust $11.22

EXTENSION VOTES
ALCHEMY INVESTMENTS ACQUISITION CORP 1 (ALCYF)vote September 8, 2026 -> extend from September 9, 2026 to September 9, 2027
ANDRETTI ACQUISITION CORP II (POLE)vote August 28, 2026 -> extend to from September 9, 2026 to September 9, 2027

SPAC DEAL TERMINATIONS (Last 10 Days)
2026-09-02: CAPN + Mango Financial Group Limited
2026-09-01: QUMS + SACH Pte. Ltd.

SEPARATE WARRANTS/RIGHTS
September 8: AMR RESOURCES ACQUISITION CORP (AMAC)

OTHER SPAC NEWS
CAYSON ACQUISITION CORP (CAPN) * Deal TerminationMerger with Mango terminated; Mango to reimburse expenses via convertible promissory note; SPAC resumes search for a target.

SPAC DEALS ANNOUNCED
September 3 | Plutonian Acquisition Corp II (PLUN) + NT1 Pty LtdNT1 Pty Ltd is an Australian mineral exploration company based in Sydney. It operates in Western Australia and the Northern Territory, focusing on acquiring, holding, and exploring mineral properties and related assets. The company emphasizes rare earth elements, niobium, and IOCG mineral systems.
September 3 | Texas Ventures Acquisition III Corp (TVA) + PlusAIPlusAI develops AI-based virtual driver software for factory-built autonomous trucks. Its SuperDrive™ and HyperFoundry™ solutions facilitate the development and deployment of autonomous vehicles. Headquartered in Silicon Valley, it operates in the United States and Europe and collaborates with various commercial vehicle manufacturers and ecosystem partners, including TRATON GROUP’s Scania and MAN, Hyundai Motor Company, and NVIDIA.

SPAC Movers — September 8, 2026

YESTERDAY’S TOP SPAC GAINERS
Company Ticker Change Price Stage
HENNESSY CAPITAL INVESTMENT CORP VII HVII 18.5% $ 9.67 Announced
BEST SPAC I ACQUISITION CORP BSAA 3.1% $ 11.30 Announced
ANDRETTI ACQUISITION CORP II POLE 3.1% $ 11.12 Pre-Deal
FUTURE VISION II ACQUISITION CORP FVN 2.1% $ 10.29 Announced
GORES HOLDINGS XI INC GHXI 1.1% $ 10.10 Pre-Deal
YESTERDAY’S TOP SPAC LOSERS
Company Ticker Change Price Stage
INFLECTION POINT ACQUISITION CORP V IPEX -29.0% $ 7.75 Announced
VIKING ACQUISITION CORP I VACI -18.0% $ 7.06 Announced
BLUEPORT ACQUISITION LTD BPAC -12.3% $ 8.71 Announced
RESEARCH ALLIANCE CORP III RACC -7.5% $ 11.44 Announced
RISING DRAGON ACQUISITION CORP RDAC -6.7% $ 5.87 Announced
Source: Boardroom Alpha market data

Frequently Asked Questions

  • What happened to Cayson Acquisition Corp’s Mango merger?
    Cayson Acquisition Corp (CAPN) terminated its merger with Mango on September 8, 2026. Mango is set to reimburse expenses through a convertible promissory note, and CAPN resumed its search for a target.
  • When is CAPN‘s extension vote scheduled?
    Cayson Acquisition Corp (CAPN) scheduled its extension vote for September 23, 2026.
  • How many SPAC IPOs priced in September 2026 through September 8?
    September 2026 has one SPAC IPO for $100M through the first 8 days, compared with 5 IPOs for $650M over the same span in August 2026.
  • Which SPAC deals were announced in the last 5 days?
    Two SPAC deals were announced in the last 5 days: Plutonian Acquisition Corp II (PLUN) with NT1 Pty Ltd and Texas Ventures Acquisition III Corp (TVA) with PlusAI.
  • Which extension-vote items were listed today?
    The extension-vote section listed Alchemy Investments Acquisition Corp 1 (ALCYF) and Andretti Acquisition Corp II (POLE), both tied to deadline extensions to September 9, 2027.


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Published Sep 8, 2026

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