Top 1000 Funds: From the outside, investment strategy at Detailhandel, the €21 billion Dutch fund for retail workers, looks relatively simple. Ninety per cent of the portfolio is passive and the fund invests the bulk of its assets in three markets. Fixed income (58 per cent), equity (32 per cent) and real estate (4 per cent) plus a 4 per cent allocation to Dutch residential mortgages and a 2 per cent allocation to alternatives.