Nationwide Mid Cap Market Index Fund Institutional Service Class 

This fund commits a significant portion, exceeding 80%, of its total assets to the shares of companies featured within the S&P MidCap 400® Index. This benchmark encompasses roughly 400 mid-sized U.S. corporations across a broad spectrum of industries. The investment adviser utilizes an indexing approach, striving to replicate the performance of the S&P MidCap 400® Index prior to the deduction of fund-related expenses.