Assets under management (AUM) at Janus Henderson Group plummeted $50bn (£38.43bn) last quarter amid volatile markets.
The company, which was formed through the 2017 merger of Henderson Group and Janus Capital Group, saw AUM fall 13 per cent from $378.1bn to $328.5bn in the three months to the end of December.
Net income in the quarter was $106.8m, down from 111.2m in the previous quarter and diluted earnings per share dropped from $0.55 to $0.54.
The firm, which announced the departure of veteran investor Bill Gross yesterday, added that it has completed its Brexit contingency preparations and is equipped to serve investors in the UK and the EU regardless of the outcome of the negotiations.
Janus Henderson Group chief executive officer Dick Weil said: “Against a backdrop of volatile markets and ongoing change in the asset management sector, 2018 was a year of further transformation for our firm...Despite this progress and our continued success taking market share in our largest geography - US active mutual funds - we faced the same global market challenges and headwinds as the wider industry, combined with an aggregate £18bn outflow, which was disappointing.
“As an active manager, the current volatile environment causes our clients to look to use for help and support. It provides us with an especially important opportunity to earn our clients’ loyalty and to differentiate ourselves from our competition - both active and passive.”