Amazon, Walmart, Instacart continue to compete as agencies add more commerce media ad dollars to their carts

Amazon, Walmart and Instacart are all upping the commerce game in their own way — with some seeing results returning to pre-pandemic levels and others experiencing major growth in performance metrics, according to Pacvue.

Commerce acceleration platform Pacvue last week published its Q2 advertising results across the three major e-retailers, using performance data from thousands of advertisers across brands and categories. While the industry still grapples with some economic uncertainties from the start of the year, Pacvue found a shift this quarter in brands investing more in sponsored ads and increasing targeting on these three retail platforms.

Agencies are definitely seeing the rise in retail media networks. Brandon Murphy, strategy and transformation lead at Trade School, said there’s been “meteoric growth with [ad] spending” as the fourth largest media channel by total spend — behind search, linear TV and social media, per WARC Media and GroupM research.

The retail giant’s advertising saw growth in its daily ad spend on sponsored brands in the second quarter. The current average CPC for Amazon sponsored products — CPC ads that promote individual product listings on Amazon — is $1.21, and the average ad spend on this increased 7.1% year-over-year.

In Q2, Amazon saw a year-over-year decrease in its daily ad spend, but there was a quarterly increase of 3.2% – indicating some recent growth in this ad type. Its CPA slightly increased 2.6% year-over-year to $9.85, whereas ROAS decreased 1.5% year-over-year but increased 6.1% quarter-over-quarter.

“This may be a result of a more efficient campaign or better ad creatives leading to a higher return on investment,” the report noted.

In particular, ROAS for sponsored products increased 3.2% year-over-year and reached the highest ROAS since the beginning of the pandemic in Q2 of 2020. The beauty/personal care category also performed well, increasing 69.4% year-over-year. Its grocery category is also getting consistent increases monthly since 2022, but some of that growth is tapering just a bit — average ad spend is up 65.6% compared to last year, and ROAS increased 6.4% year-over-year.

Walmart Connect is making progress in growing its advertising platform, seeing a 125% year-over-year increase in CTR and 40% increase in ROAS this quarter. Pacvue attributed the growth to tweaks the company made to its algorithm and bid rules and suggested bid features recently. Last year, Walmart Connect made changes to its search relevancy algorithm and implemented a second-price model to its bidding process, aiming to help advertisers from overpaying. In the new system of an online auction, advertisers bid against each other instead of paying their max amount to win the auction.

As a result of some of these changes, Walmart’s average CPC decreased 18.3% year-over-year to 58 cents and ROAS increased to $6.93. Advertisers are also spending more on the platform, with average ad spend increasing 14.5% year-over-year and 2.2% quarter-over-quarter.

Instacart has seen stable CPC and a rising ROAS year-over-year, but competitive spend and costs are starting to increase this quarter. The study noted greater efficiency in advertising spend since December 2022, with ACOS increases and ROAS decreases “trending in less efficient directions” after April 2023.

“These patterns seem to align with the seasonal spikes ahead of summer holiday and winter holiday peaks, where attention and competition likely increase for food and household goods,” according to the report.

In Q2, Instacart’s average CPC is mostly flat, increasing 1.1% to 91 cents. Average ad spend declined 8.2% year-over-year, mostly at the start of the quarter in April. Ad spend was increasing monthly heading into the summer, and average ROAS on the platform is up 9.86% year-over-year to $5.57, but slightly down from $5.80 in Q1 2023.

Effective cost per mille, eCPM, has seen consistent growth, but Pacvue cautioned that the cost of reaching a thousand potential customers has grown some 30% since April 2022, or about 2% every month.


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