Hargreaves Lansdown has achieved record levels of assets under administration after attracting £4.7bn of new money in the three months to April.
The wealth manager now runs more than £35bn of client assets, while the quarterly rise also sparked a 23% increase in revenue for the period, to £76.3m.
Net inflows to 31 March stood at £1.8bn, a record, the company said, for any quarter in its history.
Hargreaves said that, though it is too early to fully quantify the potential effects of reduced access to financial advice for the public as a result of the Retail Distribution Review, it believes there is a growing trend towards self-directed investing.
"Accelerated client growth and increased volumes of business transfers to us since 1 January, together with data analysis of client behaviour, support our view that self-directed investing... is increasingly recognised as a sensible and good value imperative," it said in statement.
Elsewhere, the company reported a 127% rise in net inflows to its discretionary Portfolio Management Service since the beginning of July last year.
Meanwhile, the number of active clients using its Vantage service increased by a record 30,000 in the first three months of this year, and now stands at 476,000.
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