The Maze: A modest sales-growth headline can conceal a much faster online business inside the same retailer. Walmart’s US comparable sales rose 2.6% in the quarter shown in RetailGeek’s captured dataset, while digital sales grew 24.0%. The difference is 21.4 percentage points. That matters for brands deciding where to put inventory, people and advertising. But comparable sales measure growth on the retailer’s defined comparable base and can include online orders. Treating that first number as physical-store growth would create a rivalry the evidence does not measure.

The growth gap deserves a retailer-specific plan. Grocery chain Kroger combines 1.0% comparable growth with 19.0% digital growth. Warehouse retailer Costco combines 6.8% with 21.0%. Those gaps are 18.0 and 14.2 percentage points respectively. They tell a supplier to investigate the online business inside each relationship rather than apply one broad sales forecast. Better product information, availability and fulfilment can be sensible areas to test. These are operating implications; the figures do not measure the return from any particular intervention.
Faster growth does not automatically mean more new sales. A percentage change starts from a base. A small online channel can grow quickly while adding fewer dollars than a much larger business growing slowly. Some digital purchases may also replace purchases shoppers would have made elsewhere within that retailer. The paired figures contain neither channel revenue bases nor a decomposition of incremental demand. Multiplying an advertising budget by the ratio of the two growth rates would therefore turn an interesting question into an unsupported spending rule.
The exceptions prevent a universal digital-growth story. Electronics retailer Best Buy’s rates sit close together: 4.5% comparable growth and 5.1% digital. Gap Inc., the clothing group, shows both down 1.0%. Victoria’s Secret has 9.0% comparable growth against 8.1% digital. Albertsons offers another useful contrast: comparable sales fall 0.8% while digital rises 13.0%. Online momentum and broader weakness can coexist. A brand needs to know which pattern describes its own account before deciding whether its problem is weak demand, channel execution or something the dataset cannot resolve.
The comparison is strongest within each row. Each retailer’s two rates refer to the fiscal quarter printed beside it. Across retailers, those fiscal labels and geographic footprints differ. Walmart is US; several other digital figures cover the whole company. The methodology preserves companies’ reported definitions rather than harmonising them. That limits a cross-company league table. The supplied exhibit is also a captured snapshot, while the live tracker has since expanded its coverage. Keep the dated comparison intact instead of mixing it with newer observations.
Why it matters: For a brand selling through retailers, the practical test is whether its online capabilities match the opportunity inside each account. Compare availability, conversion and sales with that retailer’s own digital trend, then check contribution after advertising, fulfilment and returns. A larger online business can deserve more attention without deserving unlimited subsidy. The broader lesson travels beyond the US sample: an average can hide a commercially important difference. The percentages themselves do not travel beyond the businesses and periods measured here.


