In a marketing analytics course I am teaching, we began studying marketing metrics as we entered Week 3 of the semester. I am on the lookout for clues about a class’s subject knowledge and willingness to engage during the early stages of the semester. An observation made by a student gives me optimism about how the class will go.
Introducing Brand Penetration
Among the first metrics introduced in the course is brand penetration. Its calculation is straightforward, dividing a brand’s customer count (individuals, households, or businesses) by the total size of the market. How much of the population has a brand captured? I often tell students that interpretation and action are even more important than calculation. What do we do with the information? How can knowing brand penetration help us make more informed marketing decisions?
Interpretation is Everything
An example I shared with the class included a brand having a brand penetration rate of 5%. Once we have the metric in hand, we clarify its interpretation (5% of what?). Then, the all-important question: How can we use this information to our advantage? A refreshing answer came from Justin, seated in the front row. He observed, “95% of the population has not bought the brand.”
Justin’s observation was simple yet powerful. It may be tempting to focus on a 5% brand penetration rate as weak performance in the market; perhaps it is. The flip side is that opportunity may be found among the 95% who have not bought your brand.
A 95% Full Glass
It would be naive to believe all non-customers could become brand adopters. The reality is that not everyone wants what you offer. Some people think it is too expensive. Others think the quality is inferior. Yet others have heard from a friend about a bad experience doing business with you and have little trust.
That said, there are likely new customers to be found among consumers or businesses not buying from you now. There is a tendency to nurture (even cling to) our current customers and not put enough focus on customer acquisition. Sometimes, the pendulum swings too far the other way, and more attention is given to acquiring the customer than serving them once they become customers.
In addition to pursuing more customers in the quest for higher brand penetration, the answer for increasing brand penetration may be to fix internal flaws. A low brand penetration rate may signal marketing mix issues that need to be addressed (e.g., poor distribution, low brand awareness, or price disadvantage). Correcting weaknesses in marketing strategy could yield a higher brand penetration rate.
Seek the Why
Another point of emphasis when I teach marketing analytics is that I caution students about the limitations of metrics. For example, rate metrics like brand penetration are valuable for giving a read on marketing performance. They are also useful for tracking performance over time and comparing to industry averages.
What is missing? Understanding why performance reflected by rate metrics is what it is, good or bad. Rate metrics can signal the need to dig deeper to understand performance, expose problems, or uncover opportunities.
Seek the why for performance. Then, it is your time to shine as a marketer by making decisions that create value for customers and your organization.








