Nucleus has floated on the Alternative Investment Market (Aim) with a market capitalisation of £139.9m.
The Edinburgh-based wrap platform, which has assets under administration of £13.6bn, was launched in 2006 by David Ferguson, who continues to run the business.
Nucleus has floated with a share price of £1.83p and 17.5 million of its shares have been admitted to the Aim this morning (26 July), which consists of 23 per cent of the business.
This means Nucleus's floatation has raised £32m.
Mr Ferguson, chief executive of Nucleus, said: "This is an important milestone as we continue our work to support and promote the strategic alignment of advisers and their customers.
"It is great to see so many institutional investors believing in the growth potential of this objective and we look forward to collaborating with our users to further promote transparency and improve customer outcomes."
The company sought to float because some of its earliest investors were looking for an exit, but also because it would allow it to raise capital to "accelerate growth" and pursue potential acquisitions.
Nucleus, which is partly owned by financial advisers, posted an operating profit of £5.1m for 2017, with revenues of £40.4m.
damian.fantato@ft.com
