Swiss pension fund Stiftung Abendrot plans to review its investment strategy in the coming months.

In a newsletter to members, the CHF1.3bn (€1.06bn) collective scheme said it wanted to determine whether its current asset allocation had to be adjusted to account for “economic developments�.

The Stiftung Abendrot is to consider, among other things, whether stock markets are “already overheated�, as well as what to do about the impact of rising interest rates on fixed income holdings.

As one of its “major challenges�, the pension fund cited a possible need to re-arrange its real estate portfolio, adding that it was already “well on the way� to increasing its exposure to the asset class.

“In reviewing the investment strategy,� it said, “we are also interested to see whether we can achieve additional returns – without adding any major additional risks – by small shifts in the weighting of the individual asset classes.�

At the end of 2013, the pension fund had just over one-third of its assets in fixed income, almost 25% in equities and a quarter in real estate.

The rest was invested in liquidity and mortgages, with no exposure to alternative investments.

The Stiftung Abendrot, a member of the Ethos foundation, is committed to socially responsible investment.

In 2013, the pension fund returned 6.34%, in-line with the Swiss average.

However, the net return was slightly lower at 5.5%, with the Stiftung Abendrot citing approximately CHF10m in real estate investments “not yet generating profits�.

For the first half of 2014, the pension fund reported a return of around 3%, 100 basis points below the Swiss average.

However, the scheme managed to achieve a funding level of 109.9%.