Walk down any grocery aisle in 2026 and you’re watching a war play out in slow motion. On one side sit the national brands, the Cokes, Tides, and Cheerios that spent decades building shelf dominance through advertising muscle. On the other side sit the retailers’ own store brands, which have quietly evolved from cheap knockoffs into billion-dollar franchises. The battle of private label vs national brands is no longer about price alone. It’s about margin, who captures it, who protects it, and who’s losing it.
For investors and operators watching retail and consumer brand M&A, this shift matters enormously, because private label penetration is now one of the strongest forces reshaping consumer brand financials across the sector.
The 2026 Scoreboard: Store Brands Hit Record Share
The latest numbers leave little room for debate about momentum. According to midyear data from Circana, released by the Private Label Manufacturers Association (PLMA) in July 2026, store brand unit sales rose 0.2% in the first half of the year while national brand unit sales fell 0.5%. That 0.7-point spread pushed private label’s unit market share to 23.8%, an all-time high.
The full-year picture is just as striking. PLMA’s 2026 Private Label Report shows U.S. store brand sales reached a record $282.8 billion in 2025, up roughly $9 billion from the prior year. Store brand dollar sales grew 3.3%, nearly three times the 1.2% growth national brands managed. Unit volume tells the same story: private label added over 434 million units while national brand volumes declined.
Two details in the data deserve attention:
The dollar-vs-unit gap. In the first half of 2026, private label dollar sales were flat while national brand dollars grew 2.2%, leaving store brand dollar share at 21.2%. That’s not a sign of weakness, it reflects national brands raising prices to offset tariffs, fuel, and input costs while private label held its pricing. Units, which measure actual consumer choice, favor store brands in five of six monthly reporting periods this year.
The behavior shift is sticky. A Zappi consumer survey found the share of shoppers who buy only national brands collapsed from 21% to 10% in under a year, with more than 90% reporting they’ve changed shopping habits due to rising costs. Once a shopper discovers the store brand version is 25–40% cheaper and just as good, they rarely switch back.
The Margin Math: Why Retailers Are All-In
Here’s the engine driving the entire conflict. On national brands, grocers typically earn gross margins in the 25–35% range. On private label products, margins can exceed 40%, even after selling the item at a 20–40% discount to the branded equivalent.
How is that possible? The retailer strips out everything that makes a national brand expensive:
- No brand tax. Private label suppliers have no brand equity to charge for, so wholesale costs run dramatically lower, manufacturing costs can be 40–50% below branded equivalents.
- No middlemen. The retailer effectively becomes its own distributor and importer, capturing markup layers that would otherwise go to brokers and wholesalers.
- Minimal marketing spend. The store shelf is the advertising. National brands spend billions on media; store brands get prime placement for free.
- Negotiating leverage. A strong store brand gives the retailer a credible walk-away option in every wholesale negotiation, which pressures national brand suppliers to concede better terms.
The result is a structural profit advantage. Analysis of Walmart’s business, for example, has pegged its private label margins at up to 35% versus roughly 26% on national brands, a spread that flows straight to gross profit on a growing share of the basket.
The Kirkland Standard
If you want proof that private label can become the business rather than a sideline, look at Costco. Kirkland Signature now accounts for roughly a third of Costco’s total sales, a franchise generating more annual revenue than Nike or Coca-Cola. Kirkland proved the ceiling for store brand quality and trust is far higher than the industry assumed, and every major retailer has taken notes:
- Walmart launched bettergoods in 2024, which hit roughly $500 million in first-year sales and reached 28% of households; in April 2026 it announced a full redesign of Great Value in response to accelerating store brand adoption.
- Target’s Good & Gather is a $4 billion brand on its own, one of eleven owned brands exceeding $1 billion.
- Kroger’s Our Brands portfolio tops $32 billion in annual sales, large enough to rank among the biggest U.S. consumer packaged goods companies if it stood alone.
What This Means for Consumer Brand Financials
For anyone analyzing consumer brand financials, whether for equity research, acquisition diligence, or competitive strategy, private label pressure now shows up in three predictable places on national brand income statements:
1. Volume erosion masked by pricing. Many large CPG companies have posted revenue “growth” for three straight years that was almost entirely price-driven, while unit volumes declined. When you see revenue up 2% but volumes down 3–4%, private label substitution is usually part of the story. It’s one of the first things to check when reading retail and consumer earnings reports.
2. Rising trade spend and promotion. To defend shelf space, national brands are increasing promotional allowances and price rollbacks, which compresses net revenue realization even when list prices hold.
3. Portfolio pruning and M&A. Brands stuck in the “mushy middle”, not premium enough to justify their price gap, not cheap enough to compete with store brands, are being divested, discontinued, or acquired at discounts. This dynamic is a major driver of the deal flow covered in our pillar guide to retail and consumer brand M&A.
National brands aren’t defenseless, though. They retain pricing power where emotional connection outweighs functional value, personal care, beauty, and carbonated soft drinks remain resistant to private label. Innovation is the other moat: store brand launches are largely reactive, following trends national brands create. Brands that keep innovating, premiumizing, and differentiating are still growing profitably. Those competing on shelf price alone are in structural decline.
The Caveat: Higher Margin Percentage ≠ Higher Profit Dollars
One nuance sophisticated operators understand, and headlines usually miss. Research from Dartmouth’s Tuck School of Business found that because private label items sell at prices 20–40% below national brands, the margin advantage in dollar terms is much smaller than the percentage spread suggests. Add in the packaging, quality upgrades, and marketing costs retailers now shoulder for premium store brands, and the net “penny profit” per unit can occasionally fall below that of a national brand.
Interestingly, the same research found retailers earn higher margins on national brands in categories where their private label share is strong, evidence that store brands function partly as a bargaining weapon, not just a product line. The strategic value of private label often exceeds its direct P&L contribution.
There are risks on the retailer side too: private label share gains historically flatten when consumer confidence rebounds, and a single bad product experience can damage trust in a retailer’s entire store brand portfolio.
Outlook: A Structural Shift With Room to Run
The most compelling argument that this margin war is far from over sits in the international comparison. U.S. private label penetration stands at roughly 22–23% of dollar sales. In Europe, store brands command 39–47% of the market in major economies, and over 52% in Switzerland. If the U.S. merely drifts toward European norms, national brands face years of additional share erosion, and retailers gain years of additional margin tailwind.
Private label has now outgrown national brands in both dollars and units for three consecutive years. This isn’t a recession blip or a post-pandemic correction. Consumers aren’t settling, they’re choosing. And retailers, who own the shelf, the transaction data, and now the product itself, have every incentive to keep pressing the advantage.
The bottom line: in the private label vs national brands fight, the margin war is being won aisle by aisle by the companies that own the stores. For national brands, the survivable strategies are innovation, premiumization, and emotional differentiation. For investors, private label penetration by category has become an essential input when evaluating any consumer brand’s financials, and a key variable behind the wave of consolidation sweeping the sector.