A sales communication for an investment fund that distributes different classes or series of securities that are referable to the same portfolio must not contain performance data unless the sales communication complies with the following requirements:
2. If the sales communication refers to more than one class or series of security and provides performance data for any one class or series, the sales communication must provide performance data for each class or series of security referred to in the sales communication and must clearly explain the reasons for different performance data among the classes or series.
3. A sales communication for a new class or series of security and an existing class or series of security must not contain performance data for the existing class or series unless the sales communication clearly explains any differences between the new class or series and the existing class or series that could affect performance.