When do fluctuations in CPMs typically happen?

1. They rise at the beginning of the quarter and dip at the end of the quarter.
2. They dip at the end of the year and rise at the beginning of the year.
3. CPMs rise at the end of a quarter and dip at the beginning of a quarter.
4. CPMs don't fluctuate, they are a fixed value across the year.

100% Correct Answer:

• CPMs rise at the end of a quarter and dip at the beginning of a quarter.