Ask an owner which product matters most and they'll usually name the bestseller. It's the one that fills the order book, so it feels like the engine of the business.
Often it is. But sometimes the bestseller brings in a lot of sales and very little profit, while a smaller line quietly earns more per ringgit and is growing faster. Revenue alone hides both of those things: margin and momentum.
Large companies have a standard way to see this. It fits on one page.
What big companies use: the BCG matrix
In a 1970 essay, The Product Portfolio, Bruce Henderson, founder of the Boston Consulting Group, argued that a company should be managed as a portfolio of products with different growth rates and market shares, not as one business. Each product is placed on a 2×2 grid by two questions: how fast is its market growing, and how strong is its share of that market? The four boxes got memorable names: stars, cash cows, question marks and dogs.
The point was never the labels. It was about cash: growing products consume cash, mature products should generate it, so profit from mature lines funds the lines that can grow, and lines that do neither get fixed or let go. BCG itself revisited the matrix in 2014 and argued it still works, with adjustments for markets that change faster than they used to.
What we changed for small businesses
The original matrix needs market growth and relative market share. Most SMEs don't know either, and estimating them is guesswork. So this version keeps the discipline and swaps the inputs for numbers you already have:
| Original BCG | SME version | Where you find it |
|---|---|---|
| Market growth rate | Your sales growth for that product: last 6 months vs the 6 months before | Your POS, invoices or accounting software |
| Relative market share | Your gross margin on that product: (price − direct cost) ÷ price | Your costing, or a rough estimate |
| Compared with the market | Compared with your own business average | Worked out for you |
That last change matters. You're not asking "is this a good product in the world?" but "does this product deserve more of my time, stock and money than my others?" That's a question every business can answer.
One honest limit: this version tells you where to put effort inside your business. It does not tell you how you compare with competitors. For that, you need a different tool (we'll cover Porter's five forces separately).
The four boxes, and what to do in each
| Box | Growth vs your average | Margin vs your average | What to do |
|---|---|---|---|
| Grow it (star) | Higher | Higher | Give it more stock, staff time and marketing. This is where your next ringgit should go. |
| Protect it (cash cow) | Lower | Higher | Keep the quality, avoid discounting, and use its profit to fund your growers. |
| Test it (question mark) | Higher | Lower | It's selling, but thinly. Fix the price or the cost before you push it harder, or you'll grow a problem. |
| Fix or drop it (dog) | Lower | Lower | Reprice it, bundle it, or plan to retire it. |
One framework, three businesses
The same grid works whatever you sell. These are illustrative examples, not real businesses:
- A café. The nasi lemak set is half of sales and steady: protect it. Specialty coffee is smaller but growing fast at a high margin: grow it. Catering is growing but on a thin margin: test it. Fix the tray pricing first.
- A B2B supplier. The long-standing product range is the cash cow. A new line for a growing industry is the star. A custom-order service that customers love but that eats labour is the question mark.
- An online shop. Your hero product may be a cash cow you're over-discounting. A bundle with a higher average order value may be the star. A category with high returns is probably a dog.
A real Malaysian example
QL Resources is a Bursa-listed group you probably buy from: QL eggs, surimi products, FamilyMart stores. It's far bigger than an SME (RM7.04 billion revenue in its 2026 financial year), but it publishes revenue and profit for each of its four business lines every year. That's exactly the data the matrix needs.
Here's each line, FY2023 to FY2026 (financial years ending 31 March), placed with the SME method: growth and margin compared with the group average.
| Business line | Revenue growth, per year | Profit margin, FY2026 | Share of revenue | Share of profit | Box |
|---|---|---|---|---|---|
| Palm oil & clean energy | +11.0% | 12.4% | 12% | 16% | Grow it |
| Marine products (fishmeal, surimi) | +0.1% | 17.9% | 19% | 38% | Protect it |
| FamilyMart convenience stores | +13.3% | 3.8% | 18% | 7% | Test it |
| Livestock farming (eggs, feed) | +1.7% | 6.9% | 51% | 39% | Fix it |
| Group average | +4.1% | 9.1% |
Profit = segment profit before tax ÷ revenue from external customers, from the operating segments note in QL's annual reports. Marine products' figure includes profit on sales to other QL segments; on its total revenue the margin is 15.9%, still well above average. Our arithmetic; the boxes are our reading, not the company's. The tool below uses gross margin instead, which is easier for a small business to work out; the logic is the same.
What the grid shows, and what management's own commentary says:
- Marine products is the quiet engine. 19% of revenue, 38% of profit, almost no growth. Textbook protect it: the job is to keep its margin, not to chase volume.
- FamilyMart is the growing question mark. Revenue grew fastest, but management's FY2026 report says the growth came from new stores while average sales per store were weak, and margins were squeezed by softer consumer spending, more F&B competition, and higher rent, labour and tax costs. Store-level economics before more stores is exactly what test it means.
- Livestock is half the business on a thin margin. No one would "drop" half a company. This is the fix side of the box: after Malaysia's egg subsidy ended in August 2025, management says it pushed its premium branded eggs. That's a margin fix, not an exit.
- Palm oil & clean energy is the grower, with two caveats you should always look for: part of its growth came from acquiring a company in October 2024, and FY2026 profit includes a one-off RM10.2 million gain from selling land. Even without that gain, its margin (about 11%) is above the group average.
The lesson for a small business isn't about eggs or fishmeal. It's that share of profit and share of sales can be very different, and the biggest line in your business is not automatically the one that deserves the next ringgit.
Map your own products (5 minutes)
You need three numbers per product or service: sales in the last 6 months, sales in the 6 months before that, and a rough gross margin. Use your top 4 to 8 lines. The tool below does the rest, and your numbers never leave your browser.
Free tool
Product portfolio mapper
List your main products or services. For each, enter sales for the last 6 months, sales for the 6 months before that, and your rough gross margin. Your numbers stay in your browser. If you subscribe under your map, we receive only the verdict (for example fix or drop), never your numbers.
Gross margin = (price − direct cost) ÷ price. A rough estimate is fine.
Fill in at least two products to see your map.
Three rules before you act
- Look at profit share, not just sales share. The most useful line in the result is often "this product brings X% of your sales but only Y% of your gross profit."
- Don't drop a product that brings customers in. A low-margin drink that sells with every meal may be doing its job. Check what customers buy with it before you cut it.
- Map again every 6 months. Products move between boxes. A question mark you fixed can become a star; a star eventually becomes a cash cow.
The matrix won't make the decision for you. It makes the decision visible, which is usually the hard part.
Sources
- Bruce Henderson, The Product Portfolio, Boston Consulting Group, 1970.
- Boston Consulting Group, BCG Classics Revisited: The Growth Share Matrix, 2014.
- QL Resources Bhd, Integrated Annual Report 2026: Note 31 Operating Segments (pp. 218–219) and management discussion (pp. 20–27).
- QL Resources Bhd, Integrated Annual Report 2024: Note 29 Operating Segments (pp. 188–189), source of the FY2023 figures.