Swedbank estimates the current shortfall for Heimstaden Bostad could be roughly 30 billion crowns ($2.7 billion).
Sweden's financial regulator launched an inquiry into why and how Alecta had invested $4.5 billion in the property giant, in the first place.
"If interest rates continue to rise and it's coupled with unemployment, that's what we are afraid of."
With interest rates still climbing, analysts such as Marcus Gustavsson of Danske Bank, believe the worst is not yet over.
"With rising interest rates, that funny money has turned into real money and it is painful."
Persons:
Heimstaden Bostad, Alecta, Christian Dreyer, Karolina Ekholm, Heimstaden's Dreyer, we're, Dreyer, Niklas Wykman, Heimstaden, David Perez, Marcus Gustavsson, Andreas Cervenka, Sweden, Simon Johnson, Johan Ahlander, Greta Rosen Fondahn, Chiara Elisei, John O'Donnell, Hugh Lawson
Organizations:
International Monetary Fund, GOVT, Sweden's, Financial, Reuters, SBB, Danske Bank, Thomson
Locations:
STOCKHOLM, Nordic, Stockholm, Berlin, Sweden, Heimstaden, Germany, Gdansk, London