CI Investments has announced portfolio management changes affecting three funds in its Castlerock Investments and Lakeview Asset Management divisions.

Cambridge Advisors has been named portfolio manager of Castlerock Canadian Stock Fund and Lakeview Disciplined Leadership U.S. Equity Fund.

Signature Global Advisors is being named portfolio manager of Castlerock Canadian Balanced Fund.

All changes are effective May 1, 2012.

The current portfolio manager of the Castlerock Canadian Stock and Castlerock Canadian Balanced funds is Greystone Managed Investments Inc. Greystone is continuing as portfolio manager of two other funds, Castlerock Canadian Dividend Growth Fund and Castlerock U.S. Dividend Growth Fund.

The current portfolio manager of Lakeview Disciplined Leadership U.S. Equity Fund is Barometer Capital Inc., which is continuing as portfolio manager of Lakeview Disciplined Leadership Canadian Equity Fund and Lakeview Disciplined Leadership High Income Fund.