Portfolio marketers often get frustrated measuring their function’s value to the business, as it can be difficult to determine what metrics matter most. But in Forrester’s Portfolio Marketing Survey, 2023, the top metric is clear: year-over-year offering revenue growth. While there are many metrics portfolio marketing could track, there are few they are actively measuring. Forrester asked respondents what they are measuring and which metrics they believe are most impactful to achieving growth goals. Portfolio marketing leaders must evaluate areas that demonstrate the most value and should focus on three metrics: year-over-year offering revenue growth, win/loss ratio, and average deal size.