How much of Walmart's US sales is ecommerce now?

Rainey put ecommerce at more than 23% of the US sales mix, roughly double the share of five years ago.

Why does store-based fulfillment matter to an Amazon seller?

It lowers Walmart's cost to serve on the same delivery promise. A competitor with a structurally cheaper last mile can hold or cut price into Q4 while your fulfillment fees stay where they are.

Should I move volume to Walmart Marketplace because of this?

Not on this data point alone. It is a reason to price the channel properly: run contribution margin per unit for Walmart Fulfillment Services against FBA and FBM on the same SKUs before shifting anything.

What should I actually check before Q4?

Contribution margin per unit after fulfillment, by SKU and by channel, and how much price headroom each SKU has before it goes negative. Headline price comparisons will not tell you that.

Operations

Walmart stores now handle 80% of its ecommerce order fulfillment

Q: What exactly did Walmart say?

On the August 20 earnings call, CFO John David Rainey said stores now serve as the last-mile fulfillment nodes for 80% of Walmart's ecommerce orders and 100% of its fast deliveries.

Walmart CFO John David Rainey told analysts on the August 20 earnings call that stores are now the last-mile fulfillment nodes for 80% of ecommerce orders and 100% of fast deliveries. A store-based last mile lowers cost to serve, which is what funds a price position going into Q4. For Amazon sellers the question is not matching the price, it is knowing how much price headroom each SKU actually has.

AntoineCEO at Nova Analytics

Aug 27, 2026 · 4 min read · 662 words

Updated August 27, 2026

Summarize with AI

Claude Gemini ChatGPT

On this page

Walmart's stores stopped being a legacy cost line and became its delivery network. On the August 20 earnings call the company put a number on it, and the number changes what Q4 price competition looks like for anyone selling on Amazon.

What happened

CFO John David Rainey told analysts that stores now serve as "the last-mile fulfillment nodes for 80% of our e-commerce orders and 100% of our fast deliveries," and framed the shift plainly: the more omni the model becomes, the more important the stores get, not less (Retail Dive, August 2026).

Around 3,100 US stores now run some level of supply chain automation, more than half of Walmart's ecommerce fulfilment volume flows through automated facilities, and ecommerce is above 23% of the US sales mix, roughly double its share five years ago (EcomCrew, August 24, 2026).

Why it matters

A store-based last mile is a different cost curve from a dedicated distribution network. Walmart is spreading fulfilment across buildings it already pays for and already staffs, close to the customer. The practical result is that it can hold a fast delivery promise at a lower cost to serve, and a lower cost to serve is what funds a price position.

Your fulfilment cost, whether FBA or FBM, is not moving down to meet that. So the fight in Q4 is not about matching a shelf price. It is about knowing, per SKU, how much price you can give up before contribution margin goes negative. Sellers who only track revenue and ad spend will discover that number after the quarter, which is too late to act on.

What to do about it

Calculate price headroom per SKU. The point at which a discount stops paying for itself, after fees, fulfilment, returns and ad spend.
Rank the catalogue by exposure. Categories that overlap with Walmart's grocery and general merchandise price cuts are where the reference price gets set for shoppers.
Compare channels on contribution margin, not price. If you also sell on Walmart Marketplace, run Walmart Fulfillment Services against FBA and FBM on the same units before shifting volume.
Separate delivery-speed losses from price losses. Losing the Buy Box to a faster promise is a different problem from losing it to a lower price, and the fixes are not the same.
Set a floor before Black Friday. Decide the minimum price per SKU in advance, so promotional decisions in November are not made on instinct.

The Nova angle

Price headroom is a per-unit question, and it only answers cleanly when fees, fulfilment and ad spend are reconciled against actual settlements. See Nova Profit & Loss and custom breakdowns.

Verified Sources

All information verified from official Amazon sources and trusted industry analysts as of publication date.

About the Author

Antoine

CEO at Nova Analytics

Antoine founded Nova Analytics to empower Amazon sellers with enterprise-grade analytics. He specializes in data architecture and building scalable solutions for e-commerce businesses.

Connect on LinkedIn

See your Amazon business clearly.

Try for free Explore pricing

What happened

Why it matters

What to do about it

Calculate price headroom per SKU. The point at which a discount stops paying for itself, after fees, fulfilment, returns and ad spend.

Rank the catalogue by exposure. Categories that overlap with Walmart's grocery and general merchandise price cuts are where the reference price gets set for shoppers.

Compare channels on contribution margin, not price. If you also sell on Walmart Marketplace, run Walmart Fulfillment Services against FBA and FBM on the same units before shifting volume.

Separate delivery-speed losses from price losses. Losing the Buy Box to a faster promise is a different problem from losing it to a lower price, and the fixes are not the same.

Set a floor before Black Friday. Decide the minimum price per SKU in advance, so promotional decisions in November are not made on instinct.

Walmart stores now handle 80% of its ecommerce order fulfillment

What happened

Why it matters

What to do about it

The Nova angle

Verified Sources

Antoine

See your Amazon business clearly.

What happened

Why it matters

What to do about it

The Nova angle

Frequently Asked Questions

What exactly did Walmart say?

How much of Walmart's US sales is ecommerce now?

Why does store-based fulfillment matter to an Amazon seller?

Should I move volume to Walmart Marketplace because of this?

What should I actually check before Q4?

Frequently Asked Questions

What exactly did Walmart say?

How much of Walmart's US sales is ecommerce now?

Why does store-based fulfillment matter to an Amazon seller?

Should I move volume to Walmart Marketplace because of this?

What should I actually check before Q4?

What happened

Why it matters

What to do about it

The Nova angle

Verified Sources

Antoine

Related guides

See your Amazon business clearly.

What happened

Why it matters

What to do about it

The Nova angle

Frequently Asked Questions

What exactly did Walmart say?

How much of Walmart's US sales is ecommerce now?

Why does store-based fulfillment matter to an Amazon seller?

Should I move volume to Walmart Marketplace because of this?

What should I actually check before Q4?

Frequently Asked Questions

What exactly did Walmart say?

How much of Walmart's US sales is ecommerce now?

Why does store-based fulfillment matter to an Amazon seller?

Should I move volume to Walmart Marketplace because of this?

What should I actually check before Q4?