Stock meter instead of 'High demand' banner: +26.4% revenue/visitor

WinnerProduct page

Swapping a generic 'High demand' banner for a sold-out-before note and a stock meter lifted revenue per visitor 26.4% on a golf product page.

Convertibles ran this A/B test for a golf brand.

The meter ran on a timer, not live inventory, so the win is about the format, not proof that fake scarcity is a good idea.

+26.4% revenue/visitor
  • Revenue per visitor: +26.4% at 98% probability to beat control.
  • Orders: 368 in the variant vs 297 in control, among visitors who saw the element.
  • Only visitors who scrolled the stock element into view were counted.
  • Conversion rate, sample size and duration were not shared.

The change

Control (A)
header
title
rating
price
High demand, in stockREPLACED
Add to cart
description
reviews
Variant (B)
header
title
rating
price
Sold out twice this yearNEW
Only N% left, progress barNEW
Add to cart
description
reviews

A generic demand banner becomes a sold-out-history bar and a stock meter between price and add to cart.

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

A yellow banner in the buy box read "High demand. In stock and ready to ship."

Variant

A dark bar said the product had sold out twice this year. Below it, a bordered box said "Back in stock" and "Only N% left" with a progress bar.

Why it likely won

Our reading of the result, not the practitioner's claim.

  • "High demand" is a line shoppers see everywhere, so it is easy to ignore.
  • Saying the product sold out twice gives a concrete reason to believe the demand is real.
  • A progress bar is read at a glance, before any copy.

Caveats: The stock meter ran on a timer and was not tied to real inventory. Invented stock levels can break consumer protection rules in the US and EU, so if you copy this, use real stock and sell-out data.

Who ran it

Convertibles ran this test for a golf brand and published the results (Convertibles case study). The numbers are theirs; the summary and commentary on this page are ours.

Read the original case study on Convertibles →

How to run this test on your store

Hypothesis
If we replace a generic demand banner with real sell-out history and a live stock meter, then revenue per visitor will rise because specific scarcity is more believable.
Primary metric
Revenue per visitor
Guardrails
  • Return rate
  • Customer complaints about stock claims
  • Add-to-cart rate
Who should test it
Stores with products that really do sell out or ship in limited batches. If stock is plentiful, don't invent a shortage. Use a different test.

Questions

Does scarcity messaging increase sales?

It did here. A specific stock meter beat a vague demand banner by 26.4% in revenue per visitor.

Is a fake stock counter legal?

Invented stock levels are treated as misleading under consumer protection rules in the US and EU. Tie any stock meter to real numbers.

Where should a stock meter go on a product page?

This test put it in the buy box, between the price and the add to cart button, where the shopper decides.

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