Liontrust managed to attract a £471 million net inflow during the severe volatility in the fourth quarter.
This lifted inflows in the nine months to 31 December to £1.2 billion.
The inflows partly offset a fall in assets under management in the final three months of the year, from £12 billion at the end of September to £11.2 billion.
Liontrust chief John Ions (pictured) was pleased with his firm's showing in the testing market conditions, which saw the S&P 500 lose 14% and the FTSE 100 12.5% in the final quarter as worries over a US-China trade war gripped markets.
'This [the inflow] has been achieved despite the challenging environment for equities and bonds in the latter part of 2018,' Ions told the market.
'The level of positive sales is testament to our broader fund management capability, robust investment processes, the ongoing attraction of truly active fund management and the power of our distribution.'
Ions highlighted the diversification of its business as a major factor in its ability to continue attracting investors.
This has included last year's recruitment of the global fixed income team of David Roberts and Phil Milburn from Kames Capital and the hire of Donald Phillips from Baillie Gifford. These hires complemented the addition of the sustainable investment team from Alliance Trust Investments in 2017.
'This diversification has helped to increase sales in the current financial year and is providing greater stability during volatile markets,' Ions said.
'The experience, track record and robust investment processes of our fund management teams, along with the strength of our distribution, service and administration, give me great confidence that Liontrust is well positioned for the future, however challenging and unpredictable it may be.'