AP3, Stockholm, returned 1.4% in the six months ended June 30, down from 6.4% for the same period last year, said a financial update.
The pension fund returned 6.8% for the full year 2015.
Assets fell 0.12% over the year ended June 30 to 304 billion Swedish kronor ($35.8 billion), but increased 0.33% from Dec. 31.
In a statement accompanying the update, AP3 said the pension fund's inflation, fixed income and currency risk categories made the largest contributions to performance. Details on asset allocation could not be learned by press time.
Also in the update, AP3 said it had adopted sustainability targets for 2018 in order to meet “increased expectations for sustainable investment and to achieve the climate goals signed in Paris 2015 by the Swedish government.” Moves to fulfill this include measuring and reducing the carbon footprint in the portfolio, and further investments in green bonds. Further details could not be learned by press time.
A spokeswoman for the fund could not be reached by press time.