Hargreaves Lansdown, the financial advisory and wealth management firm, said its operating revenue across all business lines rose by 16 per cent in the nine months to end-March 2010, to £98.4 million (around $151 million), compared with the same period a year before.

The value of the UK’s firm’s total assets under administration rose by 12.8 per cent from £15.6 billion as at 31 December 2009 to £17.6 billion as at 31 March 2010.

The value of assets held within the Vantage service, the group's direct-to-private investor platform, increased by 13.2 per cent from £14.4 billion at 31 December 2009 to £16.3 billion at 31 March 2010.

The rise can be attributed to £1.0 billion net new business inflows and a £900 million positive impact of the market and other growth factors during the period.