In accordance with the CFA Institute Code of Ethics and Standards of Professional Conduct, investment professionals are required to present performance information in a manner that is both fair and accurate. Consider the following scenario: An investment manager is preparing to present the performance of a newly launched hedge fund to institutional investors. The manager chooses to present the fund's performance during its initial 12-month period in a manner that does not include the performance results of the fund's subsequent month, which happened to be negative. The manager argues that doing so would make the fund appear less favorable and could potentially hamper fundraising efforts.
Which of the following actions by the investment manager is most likely a violation of the Standards related to Performance Presentation?