Liontrust Asset Management's assets under management rose to £6.0bn at the end of December, up 25% compared to the AuM at 31 March.
The group reports net inflows of £190 million in the three months from 1 October and net inflows for the financial year to 31 December of £282 million.
Chief executive John Ions said: "We enjoyed a strong last three months of 2016 with net inflows of £190 million and our AuM breaking through £6 billion. This continued growth reflects the excellent long-term performance across our fund management teams and is a testament to our focus on robust investment processes and expanding our client base. "Our acquisition of Alliance Trust Investments, which is expected to complete in April 2017, is anticipated to add around £2.3 billion to our AuM and extends further our investment capability while broadening our distribution. "The asset management industry is facing a number of significant challenges and opportunities as we enter 2017, including through regulatory, political and economic changes. We are well placed to deal with the challenges and to exploit the opportunities during this unprecedented environment given the ongoing development of the business. "This includes the investment in our internal infrastructure, including a new dealing system, fully integrating our sales and marketing systems, notably through our CRM, and Ian Chimes joining in February as Head of Global Distribution. This gives me great confidence that we will continue to grow the business whatever the challenges and opportunities we face."