The IPO Buzz: Quantinuum (QNT Proposed) Upsizes IPO to $1.4 Billion to Kick Off June

Quantinuum (QNT Proposed) – a quantum computing hardware and software company - upsized its IPO early today to raise $1.43 billion - up from its initial size of $1 billion – according to its S-1/A filing dated June 1, 2026. For the record: Quantinuum (QNT Proposed) - whose roots are in Honeywell - increased the number of shares to 26.5 million shares – up from 21.05 million shares initially..

Read more June 1, 2026

IPO Calendar

Company Symbol proposed Lead Managers Shares (Millions) Price Low Price High Est. $ Volume Expected to Trade SCOOP Rating Rating Change
Aeon Acquisition I Corp. AESPU Chardan/D. Boral Capital 12.5 10.00 10.00 $ 125.0 mil 6/3/2026 Wednesday S/O S/O
Applied Aerospace & Defense AADX Morgan Stanley/Jefferies/BofA Securities/RBC Capital Markets/Guggenheim Securities/Baird/Stifel/WR Securities/Nomura Securities 32.5 18.00 21.00 $ 633.8 mil 6/3/2026 Wednesday S/O S/O
INNIO Holding GmBH INIO Goldman Sachs/J.P. Morgan/Morgan Stanley/BofA Securities/Barclays/Citigroup/Baird/BNP Paribas/Deutsche Bank Securities/RBC Capital Markets/UBS Investment Bank 75.0 24.00 27.00 $ 1912.5 mil 6/4/2026 Thursday S/O S/O
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Last 100 IPOs - May 31, 2026

Number of IPOs priced : 100
Number Up: 51
Number Down: 47
Number Unchanged: 2
Percentage Change From Issue Price: -0.37%
Percentage Change for The Nasdaq Composite 35.22%

2026 IPO Scorecard - May 31, 2026

Number of IPOs priced (Excluding 98 units) : 73
Number Up: 38
Number Down: 33
Number Unchanged: 2
Total Return From Issue Price: 8.77%
The Nasdaq Composite Index YTD % Change 35.22%