Portfolio manager Robert Lyon is coming back to CI Investments.

After an absence of more than eight years, Lyon is leaving his position at AGF Investments and returning to his old mutual fund firm to join its Signature Global Asset Management team.

Lyon specializes in natural resources, and he will be responsible for Signature's natural resource funds as well as the domestic and foreign natural resource equity holdings within other Signature mutual funds.

Effective on or before Jan. 1, 2015, Lyon will become lead portfolio manager of the Signature Global Resource Fund, the Signature Global Resource Corporate Class, the Signature Global Energy Corporate Class, and the Signature Gold Corporate Class.

"We are very pleased to welcome Bob back to CI," comments CI president Derek J. Green. "He is one of the leading resource portfolio managers in Canadian asset management and his extensive experience in securities research and selection will benefit the entire Signature team."