4. How to Optimize Your Product Portfolio
This article expands on the fourth topic of the hoWrizon.framework – How to Increase Retail Store Performance: A Complete Guide
It focuses on product portfolio management: how to think about your assortment as an investment portfolio, where every product has a clear purpose. You'll learn the most common mistakes retailers make when expanding their assortment, understand what a balanced portfolio looks like, and discover the key metrics that drive profitability, improve cash flow, and maximize the return on your inventory investment.
Your Store Assortment Isn't a Product List. It's an Investment Portfolio.
Owners of specialty retail stores spend a tremendous amount of time searching for new brands and exciting products. It's one of the best ways to differentiate yourself from competitors while staying true to the reason you entered retail in the first place: offering products you genuinely believe in.
From a business perspective, however, that isn't enough.
In the early stages of a business, things are different. Your assortment is limited, your budget is tight, and you carefully select the very best products you can afford before opening your doors.
As your business grows, you gradually realize that success isn't only about offering great products. It's about understanding the role each product should play within your overall portfolio.
The assortment keeps expanding.
You discover an exciting new brand, customers ask for something specific, a supplier offers attractive purchasing terms.
You simply don't want to miss an opportunity.
After a few years, you often end up with an assortment where each individual product makes sense—but the portfolio as a whole doesn't.
The result?
More money tied up in inventory.
More difficult purchasing decisions for customers.
Lower profitability.
The mistake is treating every product the same.
Not every product will sell equally well.
Not every product will generate the same margin.
And certainly not every product will contribute equally to your profits.
A well-managed assortment combines different types of products that complement one another—just like a successful football team doesn't need eleven strikers.
1. Every Product Should Have a Clear Role
Most successful retailers offer a balanced mix of different product types.
Each serves a different purpose.
Some attract customers.
Some strengthen the brand.
Others generate profit or increase basket size.
You shouldn't expect every product to achieve the same objective. If you can't clearly explain why you're selling a particular product, it probably doesn't belong in your assortment.
Typical product roles include:
Destination Products
These are the products or brands customers specifically come to your store to buy.
They don't necessarily generate the highest sales or the best margins. Their value lies in giving customers a compelling reason to visit your store instead of someone else's.
Example
A running store becomes known for carrying the widest selection of On running shoes.
Or a design store secures exclusive distribution rights for a popular Scandinavian brand like HAY.
Cash Cows
These are your long-term performers.
Products with stable demand, healthy margins, and predictable sales that consistently finance the business.
Example
A specialty coffee shop sells several coffee beans that customers purchase month after month.
They may not be the most exciting products on the shelves, but they generate a significant share of both revenue and profit.
New Arrivals
New products keep your assortment fresh.
They give existing customers a reason to return and demonstrate that your business continues to evolve.
They don't need to become top sellers.
Example
A limited-edition T-shirt collection.
Or a new collection from a local ceramics artist.
Window Pieces
These products help sell the entire store.
They may only sell occasionally, but they stop people walking past your storefront and encourage them to come inside.
Example
A premium turntable.
A designer floor lamp displayed in the window.
Their purpose isn't to become bestsellers.
Their job is to communicate what your store stands for.
Brand Builders
These products strengthen your credibility and help customers understand what makes your business unique.
They're often neither your biggest sellers nor your most profitable products.
Instead, they define the standard for your entire assortment and reinforce your positioning around expertise, quality, or uniqueness.
Example
A photography store carries professional Leica cameras.
A kitchen store offers handcrafted Japanese knives.
A design store stocks products customers simply can't find elsewhere.
These products send a powerful message:
"This is a place that carefully curates the very best."
As a result, they often make customers more willing to purchase other, more accessible products throughout the assortment.
Entry Products
These products have a low barrier to purchase.
They make it easy for new customers to try your store without making a significant investment. Often, they're the beginning of a long-term customer relationship.
Example
A tea sampler.
A small scented candle.
A craft soda.
High-Margin Products
These products make a significant contribution to your overall profitability.
They don't have to be your bestsellers. What matters is that every sale generates above-average gross margin.
They are often private-label products, exclusive items, or carefully selected accessories.
Example
A cycling store's private-label apparel.
A specialty coffee roaster's own coffee beans.
A shoe store's premium insoles or branded shoelaces.
Impulse Products
These are products customers didn't plan to buy but are happy to add to their basket.
Their purpose isn't to attract customers to the store—it's to increase the average transaction value.
Impulse products work best when they naturally complement the main purchase or are placed at the final stage of the customer journey, such as near the checkout.
Example
A corkscrew or premium chocolate in a wine shop.
An energy bar or water bottle in a cycling store.
A greeting card or scented candle in a design store.
Although these products are often inexpensive, they frequently generate some of the highest margins in the entire assortment and can have a surprisingly large impact on overall profitability.
Product Portfolio Roles at a Glance
Destination Products
Bring customers into the store
Cash Cows
Generate stable revenue and finance the business
New Arrivals
Give customers a reason to return
Window Pieces
Capture attention and attract passers-by
Brand Builders
Strengthen brand perception and trust
Entry Products
Lower the barrier to the first purchase
High-Margin Products
Maximize profitability
Impulse Products
Increase average transaction value
Important: A single product can serve multiple roles at the same time. For example, an exclusive private-label product can simultaneously be a Destination Product, a Brand Builder, and a High-Margin Product. The goal isn't to force every product into a single category, but to consciously understand the value each one brings to your business.
If you want to evaluate your assortment systematically, you can't look at products in isolation.
You need to view the entire store as an interconnected system.
That's exactly what I help retail founders do when developing product strategy, pricing, and their overall business model.
2. A Portfolio Needs Balance
The problem usually isn't a bad product.
It's the wrong mix of products.
For example:
Too many new arrivals and not enough proven bestsellers.
Too many premium products without more accessible alternatives.
Too many products competing in the same price range.
Multiple products competing against each other.
The result is a more confusing shopping experience, more inventory to manage, and capital tied up in the wrong places.
There's another common misconception worth challenging:
A smaller assortment doesn't automatically mean lower sales.
In fact, the opposite is often true.
When you remove unnecessary complexity and reduce assortment "noise," customers make decisions more easily, operations become simpler, and profitability often improves.
3. Don't Sell Products. Solve Problems.
Retailers naturally think in categories.
Customers usually think in situations.
Take an outdoor store as an example.
The retailer sees:
backpacks
water bottles
headlamps
camping stoves
The customer thinks:
"I'm going away for a weekend in the mountains."
A well-designed assortment makes it easy for customers to buy the complete solution rather than individual products.
That's where cross-selling becomes natural—and where average transaction value starts to grow.
4. Your Assortment Needs Regular Pruning
Every product has a cost.
If it isn't selling, it's tying up capital, occupying valuable shelf space, distracting customers, and consuming your team's attention.
That's why it's important to review your assortment regularly and ask whether every product still deserves its place.
Sometimes, the most profitable decision is to stop selling a product altogether.
5. You Can't Optimize What You Don't Measure
Gut feeling isn't enough.
At a minimum, every retailer should regularly track a handful of key performance metrics.
Revenue by Product
Which products actually generate your sales?
Understanding where your revenue comes from is the first step toward making better assortment decisions.
Gross Margin
Your bestsellers aren't always your most profitable products.
Looking at gross margin helps you understand which products truly contribute to the business.
Gross Profit
Percentages can be misleading.
A product with a lower margin percentage may still generate more profit in absolute terms than a product with a higher margin.
That's why both metrics matter.
Inventory Turnover
How long is your capital sitting on the shelf?
The faster inventory moves, the more efficiently you're using your working capital.
GMROI (Gross Margin Return on Inventory Investment)
How much gross margin does every dollar (or euro) invested in inventory generate?
GMROI is one of the most valuable metrics for assortment management because it combines profitability with inventory efficiency.
Despite its importance, many independent retailers never measure it.
Sell-Through Rate
What percentage of purchased inventory do you sell within the planned period?
This metric is especially important for seasonal products, fashion, and any assortment with a limited selling window.
ABC Analysis
Not every product contributes equally to your business.
ABC analysis helps identify the products that generate the majority of your revenue or profit, allowing you to focus your attention where it matters most.
In most retail businesses, a relatively small portion of the assortment is responsible for the majority of commercial results.
Key Takeaways
A great assortment isn't built by continuously adding more products.
It's built by ensuring that every product has a clear purpose and contributes to a balanced portfolio.
The best retailers don't necessarily offer the widest selection.
They offer the most thoughtfully curated one.
Assortment optimization isn't a one-time project.
It's an ongoing discipline that connects product strategy, finance, merchandising, and a deep understanding of customer needs.
If you're not sure whether your assortment is supporting your company's growth—or simply tying up unnecessary capital—I'd be happy to help you take a closer look.
Sometimes, a handful of strategic changes to your portfolio creates a bigger impact than adding dozens of new products.
FAQ
How do I know if my assortment is too broad?
Typical warning signs include growing inventory levels, slow inventory turnover, increasingly complex purchasing decisions, and products that sell only a few times a year.
How many products should a store carry?
There is no universal number.
What's far more important is whether every product has a clearly defined commercial purpose.
Should I discontinue products that don't sell well?
Not necessarily.
Some products serve a branding, marketing, or strategic purpose rather than a sales objective.
The important thing is that their role is intentional—not accidental.
How often should I review my assortment?
Key performance metrics should be monitored continuously.
A comprehensive portfolio review at least once a month is a good practice for most specialty retailers.
