SWIB’s third quarter real estate investments at $520; Reviewing $1bn of new deals. : State of Wisconsin Investment Board (SWIB) has bought a 20% stake in a US self-storage portfolio via a Heitman managed co-investment vehicle. The pension fund said in a board meeting document that it invested $150m (€129m) – as part of a total of $520m real estate commitments made during the third quarter of the year – with Heitman Storage Partners Co-Investment. SWIB told IPE Real Assets that it decided to invest in self-storage assets due to their strong income returns and low capital expenditures.