How to Price In-Store Retail Media Inventory: Why Most Networks Get It Wrong
Most in-store retail media inventory is underpriced — and the reason is simple: networks anchor rates to screen count or ad plays instead of measured audience. Knowing how to price in-store retail media inventory correctly starts with knowing what a slot is worth to the buyer across the table, not how many screens you own or how many times a creative loops. Those are supply numbers. Price is a demand question.
Industry estimates put in-store digital CPMs somewhere in a $10–50 band. That's a fivefold spread. It doesn't reflect five times the inventory quality — it reflects buyers who don't know what they're paying for. Wide spreads signal uncertainty, not a healthy, differentiated market.
The money is arriving regardless. US in-store retail media spend hit $370M in 2024, and eMarketer forecasts $1.06B by 2028, with 45.5% growth in 2025 alone. Who captures that? The networks that can defend a rate. Pricing discipline now decides which players graduate from remnant fill to a rate card buyers actually respect.
Physical retail still carries a "black box" reputation with media buyers. They know how many people clicked an online ad. They have no idea how many people looked at a store display. When the audience is invisible, the price gets discounted to cover the risk. Better measurement removes that discount — and justifies a premium above it.
The Measurement Standard That Should Anchor How to Price In-Store Retail Media Inventory
The IAB and IAB Europe In-Store Retail Media Standards (finalised December 2024) define four impression levels, each more valuable than the last:
- Ad play — the creative ran. Says nothing about who saw it.
- Gross impression — a person was in range. Still no attention signal.
- Opportunity to see (OTS) — a person could plausibly have seen the screen.
- Likelihood to see — presence, facing, and dwell during the creative play.
Pricing on ad plays is like billing for a TV spot with no ratings data attached — you're charging for the fact that the ad existed. Sophisticated buyers won't pay for that anymore. They want OTS at minimum, and verified views — presence plus facing plus dwell during the actual play — at the premium end. Pygmalios ScreenIQ reports exactly that combination: presence, facing, and dwell per screen, daypart, and creative, mapped directly to the top of the IAB impression hierarchy.
In IAB Europe's Attitudes to Retail Media 2025 study, drawn from around 180 respondents across 31 markets, 53% of European buyers named the lack of measurement standardisation as their number one barrier to in-store investment. On top of that, 82% prioritise transparency and 75% demand measurement options. If your rate card can't answer "who saw this," you're already losing the deal.
Why Zone and Daypart Are the Real Pricing Units
A single rate card for an entire network averages away the value of your best placements. A screen at the checkout queue and a screen halfway down a slow aisle aren't the same product. Dwell time differs. Audience intent differs. Selling them at one blended rate hands your premium value away for free.
The IAB standards define five store zones — exterior, entrance, checkout, aisles, and other — each with its own dwell profile and proximity to the moment of purchase. A shopper stuck in a checkout line is captive and close to the till. Someone drifting past an aisle screen is neither.
The conversion economics make the case. Brick-and-mortar conversion averages around 27% — roughly 16–40% depending on category — versus 2–4% for online retail (Trakwell 2024; Firework/Statista 2025). A store visitor is, on a conversion basis, an order of magnitude more valuable than a web session. The checkout queue is the highest-intent moment in the entire path to purchase. Price it accordingly.
Daypart stacks on top of zone. The same screen at 8am, noon, and 5pm serves different crowds at different densities with different demographics. Morning commuter traffic isn't the weekend family shop. Sell that screen flat across the day and you've discarded variation buyers would gladly pay to target.
How to Price In-Store Retail Media Inventory With a Three-Tier Structure
Segment your inventory into three tiers based on measured audience quality per slot — not screen age, screen size, or a hunch about location.
- Premium tier. Checkout and entrance zones backed by verified dwell data. Sell these on verified views per daypart, with guaranteed delivery and a clear make-good commitment. CPMs should sit at the high end of that $10–50 market band.
- Standard tier. Aisle screens with traffic and OTS data. Sell on an opportunity-to-see basis and price to reflect pass-through, not dwell. Honest about what it is, and priced accordingly.
- Remnant tier. Untargeted fill. Move it programmatically or bundle it — but never use remnant to set your headline rate. Protecting the premium tier's scarcity is only credible if remnant stays separate.
The guarantee structure matters as much as the number. A buyer paying for audience needs a delivery commitment and a defined make-good policy for under-delivery. Without one, they'll price the risk themselves by discounting your rate. You either guarantee the audience or you subsidise the buyer's doubt.
Don't Anchor to Online Display CPMs
Online display CPMs are the wrong benchmark. A display impression is low-intent and one scroll from gone. A verified in-store view is a high-intent, near-captive moment feet from the shelf. Same word, "impression" — completely different asset.
The economics support a premium. Industry practitioners estimate retail media network contribution margins at 60–70%, against single-digit margins in conventional retail. That margin gives you room to invest in the measurement infrastructure premium pricing depends on. Your audience is already standing in the store — more than 80% of retail sales still happen in physical locations, per eMarketer. You're not building reach. You're monetising reach you already have.
For a comparison that gives buyers a familiar frame, reach for closer analogies: digital out-of-home CPMs tiered by audience quality, or shopper marketing trade spend per thousand impressions. Both let a buyer orient without pretending your inventory is interchangeable with a banner ad.
ROAS is the metric that ends the CPM conversation entirely. In the IAB Europe 2025 study, 88% of buyers named it their most demanded metric. If your network can report campaign-level verified views tied to basket data, you can command a return-justified premium that no CPM comparison will touch. Buyers stop asking "what's your CPM" and start asking "what did the campaign return." That's the conversation worth having.
Turning Measurement Data Into a Defensible Rate Card
A defensible rate card is built slot by slot — zone × daypart × verified audience — not estimated at the network level and divided by screen count. The logic runs in five steps:
- Measure traffic and dwell per zone, per daypart.
- Calculate OTS and verified views per creative play.
- Set floor CPMs by tier — premium, standard, remnant.
- Publish the rate card with delivery guarantees attached.
- Report actuals per campaign in verified audience terms.
Reporting verified views per screen, per daypart, per creative gives buyers a number they can line up against every other channel they buy. That one change — delivered audience rather than plays — is what moves a network out of the discount bucket and into premium territory.
All of this rests on one requirement: the underlying data. Verified views don't appear on their own. You need screen-level analytics that record who was present, whether they faced the display, and how long they dwelled during the play. Before you set a rate, ask whether you can actually measure what you're selling. If you can't, you're guessing — and the discount is the buyer's reward for your uncertainty.
Sources
- IAB Europe — Attitudes to Retail Media 2025 — buyer priorities on measurement, transparency, and ROAS (~180 respondents, 31 markets)
- IAB — In-Store Retail Media Standards (December 2024) — five-zone framework and the four-level impression hierarchy
- eMarketer — US in-store retail media spend forecasts and physical retail sales share
- Trakwell (2024) — brick-and-mortar conversion benchmarks
- Firework / Statista (2025) — online versus in-store conversion rate comparison