Middlefield Group has concluded its 2018 risk rating review, the Calgary-based investment-management firm announced on Friday.

Due to the implementation of the new risk classification methodology mandated by the Canadian Securities Administrators, Middlefield has determined it is appropriate to change the risk rating for Middlefield Canadian Dividend Growers Class  to “medium to high” from “medium”.

No material changes have been made to the investment objectives, strategies or management of the fund, the company says.

The risk rating changes are reflected in the renewal simplified prospectus for Middlefield Mutual Funds, dated June 14.