The assets under management (AUM) of the Transact platform rose by just 0.1 per cent in the three months to end of March, as equity markets proved volatile.
The assets on the platform, which is owned by IntegraFin Holdings, were £29.75bn at the end of March, an increase of 0.1 per cent.
During that period, the FTSE All Share Index fell by 7.8 per cent while the MSCI World Index fell by 5.2 per cent.
The platform saw net inflows of £1.1bn, while market movements contributed negatively to the tune of £1.05bn.
Ian Taylor, chief executive of IntegraFin, said: "I’m pleased to report a solid update. Despite the return of higher equity market volatility, Transact has achieved good levels of inflows of client assets, demonstrating the strength and resilience of the business."
IntegraFin floated on the London Stock Exchange last month, when it was valued at £649m.
At the end of 2017, Transact had 5,100 adviser clients across 2,800 firms, and assets under direction of £29.7bn.