Share of Wallet Is Not a Growth Strategy

As part of our ongoing series on growth and measurement for CPG brands, we're shifting our focus to metrics that look convincing but can often mislead strategy.

If you missed our last post explaining why brand metrics are not vanity metrics, we highly recommend starting there. And as always, if this series is helpful, subscribe to receive the rest of our insights directly in your inbox.

Now let's look at a metric that is frequently mistaken for a growth engine.

The Appeal of Share of Wallet 

Share of wallet measures how much of a buyer's total category spend goes to your brand versus another brand.

At first glance, this feels like the ultimate growth metric. If a shopper buys sparkling water ten times a month, and currently buys your brand three of those times, getting them to buy your brand five times feels like a massive win.

It sounds logical to focus your marketing on winning a larger piece of your existing customers' budgets. But in practice, share of wallet is rarely a reliable strategy for durable growth.

The Repertoire Reality 

To understand why, we have to look at how consumers actually shop.

In almost all CPG categories, consumers don't buy exclusively from a single brand. They buy from a repertoire of brands. A shopper might buy your premium coffee for the weekend, a cheaper bulk brand for weekday mornings, and a canned cold brew when they are in a rush.

Trying to force that consumer to abandon their repertoire and give you all of their category spend is incredibly difficult. Consumer habits are stubborn. Meaningful increases in share of wallet among existing buyers are rare.

The Margin Trap 

Because changing these established habits is so hard, brands usually have to buy that extra share of wallet.

They do this through heavy discounting, loyalty incentives, or aggressive lower-funnel retargeting. These tactics will certainly increase the intensity of a buyer's purchasing behavior in the short term.

But as we have discussed before, this often erodes your margin and your pricing power. You are effectively paying your existing customers to behave slightly differently. You might win a larger share of their wallet this month, but you have trained them to wait for a promotion next month.

Optimizing Intensity Instead of Growth 

The fundamental flaw with treating share of wallet as a growth strategy is that it focuses all of your attention inward.

It asks how to squeeze more revenue out of the people who already know you and buy you. It optimizes the intensity of your current base.

But true durable growth comes from looking outward. It comes from household penetration and acquiring net new light buyers. Expanding your buyer base is mathematically and financially more sustainable than trying to monopolize the wallets of a small group of heavy buyers.

A Context Metric, Not a Growth Metric 

This does not mean share of wallet is useless.

It is a helpful piece of context. It helps you understand how your existing buyers allocate their category spend and where you sit in their repertoire.

But it is not a primary indicator of growth. If your share of wallet is increasing but your household penetration is flat, your business is not growing. It is just becoming more concentrated and more reliant on promotions.

In our next post, we will stay on this topic and look at exactly how promotions can create the illusion of growth by faking share gains.

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We are Left Hand Agency, a CPG media buying agency helping brands grow with short and long-term strategies. Our memory-driven strategies deliver results your marketing and finance teams will champion.