Canada

CANADA/US - The Canadian Imperial Bank of Commerce (CIBC) has acquired a 41% stake in US asset management firm American Century Investments in a move to increase its international asset management offerings.

CANADA/US - Apax Partners, the Canada Pension Plan Investment Board and the Public Sector Pension Investment Board have teamed up to purchase Kinetic Concepts in a $6.3bn deal.

CHILE/CANADA - The Ontario Teachers' Pension Plan plans to bid to increase its stakes in two Chilean water utilities.

CANADA - The Ontario Municipal Employees Retirement System will increase its contribution rate in 2012 as part of a pre-agreed plan for yearly rate hikes in the three years to 2013.

It's been a busy month for the North American de-risking market. In March, Global Pensions reported the start of the buy-in/buyout market in the US was imminent, and likely to emerge before the end of the year. It appears we were right.

CANADA/NORWAY - A consortium of investors including the Canada Pension Plan Investment Board (CPPIB) has agreed to acquire a 24.1% stake in Norway's Gassled Joint Venture.

AUSTRALIA/CANADA - The Canada Pension Plan Investment Board has bought a 50% stake in an Australian shopping centre for A$455m ($488m).

GLOBAL - Have you missed the biggest stories in pensions this week? Find out below, as we list the top 10 most popular stories on www.globalpensions.com over the past seven days.

CANADA - A Canadian pension plan has invested $104m in the new version of Acadian Asset Management's managed volatility strategy that mixes developed and emerging equities, the firm said.

CANADA - The Canada Pension Plan (CPP) ended the fiscal year with a C$20.6bn ($21bn) increase in assets under management, marking an all-time high for the fund.