Hargreaves Lansdown's multi-manager funds grew to more than £1bn in size, pushing the company's total assets to £91.6bn.
The company's results for the year to the end of June 2018 showed how Hargreaves Lansdown's total assets grew by 16 per cent and highlighted the growth of its multi-manager range of funds as key to this growth.
The company added net new business of £7.6bn in the period, and 137,000 new clients, bringing the total number of clients to 1.1m.
The FTSE 100 company posted a profit before tax of £292m, an increase of 10 per cent, and will be paying a special dividend for the year.
Chris Hill, the company's chief executive, said there had been a notable trend among Hargreaves Lansdown clients towards reducing exposure to UK equities and buying global funds instead.
Mr Hill said: "We have had another year of strong growth, in client numbers, net new business, market share and profits, driven by our continued commitment to provide excellent levels of service.
"Our continued investment into our people, technology and marketing helps our clients to engage with their savings and investments. This provides them with the knowledge and confidence to make decisions and our range of solutions makes it easy for them to act."
The company said it expected growth from its Active Savings product, which launched in December 2017 and allows Hargreaves Lansdown clients to access a wide range of savings products from banks, through the Hargreaves Lansdown website.
It is also expecting growth from its Simply Invest offering, launched earlier this year, which is aimed at first-time investors and offers funds with charges as low as 0.04 per cent.
Nick Train, who runs the £1.3bn Finsbury Growth and Income trust, is a long-term investor in Hargreaves Lansdown shares, with an investment of more than £100m held across the various funds he manages.
In his most recent update to investors he said the valuation at which Hargreaves Lansdown shares trade has persistently "outraged" investors, who viewed the company as expensively valued.
But Mr Train said despite the valuation being in the mid-20s in price to earnings terms, the shares have consistently been among the best performers in his funds.