Quantinuum (QNT) shares rose 12% to $67.49 in their Nasdaq Global Market debut on Thursday.
The stock opened at $68 and traded as high as $71.35 after the initial public offering of 28 million shares was priced at $60 each.
Underwriters have a 30-day option to purchase up to an additional 4.2 million shares.
The offering is expected to close Friday.
Price: $67.49, Change: $+7.49, Percent Change: +12.48%