The Eightx E-commerce Penetration Index · Live · updated June 24, 2026
How much of your category is actually bought online?
"16.9% of retail is e-commerce" hides the only number that matters to you: yours. Online is 44% of clothing but under 1% of fuel. Where your category sits decides your retail-vs-DTC mix and where the next dollar of growth comes from. A monthly model, reconciled to the official Census national share.
The read · Apr 2026
E-commerce is 16.9% of US retail and climbing — but it runs from 44% of clothing to under 1% of fuel.
The official national share is just the dollar-weighted average of every category below. Our model projects it reaches about 17.35% by Oct 2026.
Estimated online penetration by category · Apr 2026
Bars scaled to the leading category. "In 6 mo" is the model's projected penetration. Each row is an estimate of how much of that category's total product demand is bought online — including pure-play sales attributed back to the category — not the raw store-channel split.
How this model works & sources
The problem. The U.S. Census Bureau publishes total retail sales by category every month
(MRTS) and the national e-commerce share every quarter (ECOMPCTSA via FRED,
currently 16.9%), but it does not publish online share within each
category. Worse, a sweater bought on a pure-play site is booked as "nonstore," not as apparel — so
raw category sales understate where products are really bought.
The model. Three steps, all in transparent arithmetic. (1) We redistribute nonstore (pure-play) demand back into the product categories it represents using a product-mix prior, forming each category's true product-demand base. (2) We estimate each category's online penetration with a logistic adoption curve (the standard S-shaped diffusion-of-innovations model; Rogers 1962, Bass 1969) calibrated to that category's known starting level. (3) We reconcile those penetrations to the official national e-commerce share by iterative proportional fitting (the Deming–Stephan 1940 / Stone RAS method), solving a single scaling factor so the dollar-weighted average penetration equals the official national figure exactly. The category priors only have to be right in relative terms; the absolute level is pinned to Census every month, so the estimates self-correct. The ±band widens with months since the last national print (3 now) and with each category's distance from the anchor.
What it is and isn't. A labeled model nowcast, not a survey of actual transactions. Priors are
seeded from 2022 Census product-line E-Stats + industry e-commerce benchmarks. Sources: U.S. Census Bureau Monthly Retail Trade Survey
(seasonally adjusted) and the Federal Reserve's ECOMPCTSA series. For company-level reads,
see the Public DTC Leaderboard and the
DTC Macro Pulse. For the category-by-category editorial deep
dive, see e-commerce penetration by category,
or browse all live indexes.
Powered by
hub.eightx.co.
Channel strategy for your brand
Is your category's shift online a tailwind or a threat?
Where your category sits on this curve changes everything about pricing, retail-vs-DTC mix and where the next dollar of growth comes from. We help DTC brands read it and act on it.
Talk to a CFO →