Form N-1A Supplement |
May 31, 2025 |
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| Prospectus [Line Items] | |||||||
| Supplement to Prospectus [Text Block] | Supplement dated June 25, 2026 to the Prospectus and Summary Prospectus of the following fund (the Fund):
Effective June 25, 2026 (the Effective Date), Diamond Hill Capital Management, Inc. (Diamond Hill) no longer manages a portion of the Fund. Accordingly, as of the Effective Date, the changes described in this Supplement are hereby made to the Fund’s Prospectus and Summary Prospectus. The fourth and fifth paragraph under the heading “Principal Investment Strategies” in the Summary Prospectus and in the “Summary of the Fund” section of the Prospectus are hereby superseded and replaced with the following: The Fund may also invest in exchange-traded funds (ETFs), including pending the engagement of one or more additional subadvisers. Columbia Management Investment Advisers, LLC (Columbia Management or the Investment Manager) serves as the investment manager for the Fund and attempts to achieve the Fund’s objective by managing a portion of the Fund’s assets and selecting one or more subadvisers to manage other portions of the Fund’s assets independently of each other and Columbia Management. The Fund’s subadviser is American Century Investment Management, Inc. (American Century).
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| S000036208 [Member] | |||||||
| Prospectus [Line Items] | |||||||
| Supplement to Prospectus [Text Block] | Supplement dated June 25, 2026 to the Prospectus and Summary Prospectus of the following fund (the Fund):
Effective June 25, 2026 (the Effective Date), Diamond Hill Capital Management, Inc. (Diamond Hill) no longer manages a portion of the Fund. Accordingly, as of the Effective Date, the changes described in this Supplement are hereby made to the Fund’s Prospectus and Summary Prospectus. The fourth and fifth paragraph under the heading “Principal Investment Strategies” in the Summary Prospectus and in the “Summary of the Fund” section of the Prospectus are hereby superseded and replaced with the following: The Fund may also invest in exchange-traded funds (ETFs), including pending the engagement of one or more additional subadvisers. Columbia Management Investment Advisers, LLC (Columbia Management or the Investment Manager) serves as the investment manager for the Fund and attempts to achieve the Fund’s objective by managing a portion of the Fund’s assets and selecting one or more subadvisers to manage other portions of the Fund’s assets independently of each other and Columbia Management. The Fund’s subadviser is American Century Investment Management, Inc. (American Century).
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