Polar Capital Holdings said its Assets Under Management totalled $9.938bn at Sept. 30, and in sterling terms totalled £7.661bn.
At March 31, AuM totalled $10.432bn and £7.265bn respectively.
"Whilst it is pleasing to see our AUM, in sterling terms, higher than at the year end, this has been almost entirely due to the weakness in sterling since the Brexit vote and the healthy rise in global markets over the last few months," said Polar in a statement.
"We have continued to experience net fund outflows over the period, predominantly from our Japan UCITS fund, although we also experienced outflows in a number of other funds particularly in July in the immediate aftermath of the Brexit vote.
"Our Japan funds have now fallen to 14% of AUM although we would anticipate further outflows if the team's approach continues to remain out of favour.
"Despite the disappointing performance over the last five years the fund remains top decile in its peer group since launch and we believe those investors who can take the longer term view will be rewarded over time from current levels.
"Over our first six months for this financial year the overall backdrop for flows into equity funds has remained poor in both the UK and Continental Europe.
"Industry data indicates that outflows from long only equity funds in July were in excess of those experienced at the height of the 2008 financial crisis.
"Despite this unhelpful background, we have been encouraged by increased interest in a number of our UCITS strategies including Technology, Healthcare, Insurance, UK Absolute, Global Convertible Bond and European ex-UK Income.
"It is encouraging to note that at the end of September nine of our funds were in performance fee territory."
At 2:53pm: (LON:POLR) Polar Capital Holdings PLC share price was +2.38p at 291.13p