Sebastian Hallenius, Head of Asset Allocation at Länsförsäkringar Fonder, is leaving the firm after nine years, including seven years as portfolio manager of the multi-asset hedge fund Länsförsäkringar Multistrategi. Hallenius has co-managed the fund with Erik Gerestrand since early 2025, following the departure of former co-portfolio manager Martin Axell. Going forward, Gerestrand will be joined by Helena Billsson and Mikael Bolander, both long-standing portfolio managers within Länsförsäkringar’s multi-asset team.
“After nine years, I am now leaving Länsförsäkringar Fonder as the manager who has been responsible for the longest time, with immense pride in what we have managed to achieve during all these years,” announces Hallenius. Hallenius has overseen both strategic and tactical asset allocation for Länsförsäkringar’s range of multi-asset funds, including Länsförsäkringar Multistrategi. During his tenure, assets in the fund family grew from SEK 4 billion to SEK 35 billion, supported by consistent net inflows despite several challenging years for balanced fund investing.
“After nine years, I am now leaving Länsförsäkringar Fonder as the manager who has been responsible for the longest time, with immense pride in what we have managed to achieve during all these years.”
Sebastian Hallenius
“There is a lot I am proud of in what we have achieved with the management. For several individual years, we have been at the forefront of our peer group and have also received several LSEG Lipper Fund Awards,” writes Hallenius. “But what stands out the most to me, as a financial mathematician, is that every year we have outperformed the category average for balanced funds.”
Alongside his broader responsibilities at Länsförsäkringar, Hallenius assumed day-to-day management of Länsförsäkringar Multistrategi in June 2019. Launched in September 2016, the fund was initially managed by Aviva Investors before Länsförsäkringar’s internal multi-asset team took over three years later.
Länsförsäkringar Multistrategi aims to generate returns of three to four percentage points above the risk-free rate with roughly one-third of equity market volatility. The fund combines risk-on return drivers, including alternative equity beta, credit exposures, and alternative investments such as catastrophe bonds, with risk-off strategies such as minimum-volatility equities, defensive currencies, and physical gold. The fund managed approximately SEK 1.6 billion at the end of 2025.
“It’s hard to imagine ending on a higher note than this, and perhaps that’s also why it feels natural to move on.”
Sebastian Hallenius
“It’s hard to imagine ending on a higher note than this, and perhaps that’s also why it feels natural to move on,” concludes Hallenius in his LinkedIn post. “Of course, I will miss my colleagues and everyone who has supported us in the work of establishing Länsförsäkringar’s funds as a competitive alternative for clients and regional companies.” Hallenius has not yet announced his next professional move.
