In its financial stability review in December, the European Central Bank suggested the introduction of an international register containing information on the exposure of firms to highly leveraged institutions, such as hedge funds and prime broker banks. The register would provide prime brokers with frequent and aggregated risk information on the whole portfolio of an individual hedge fund, says the report. However, the report adds, it’s a little bit complicated and might be best left to some of the existing market products that collect reporting and flow information.