Data: Amazon Pet Days generates nearly $400M in US pet supply sales

Pet supplies generated $397.8 million (€341M) in sales on Amazon US between 11 and 15 May during the Amazon Pet Days campaign. This is equivalent to roughly 16.7 million units sold, according to data from intelligence platform Similarweb provided to GlobalPETS.

This year, the e-commerce giant expanded the annual shopping event to 5 days, 11-15 May, up from 2 days in 2025 and 1 day in previous years. The event featured several pet brands offering discounts on select supplies on the platform. 

Although the comparison is compromised by the campaign’s longer duration, the value is 8.1% higher than the same week last year. In terms of volume, the rise was more modest, at 3.9% year-over-year (YoY).

The event also generated more visibility for pet supplies: product views reached 84.3 million in the US, growing 4.4% from 2025.

Dog domination

Dog products dominated revenue share, representing 6 out of every 10 dollars spent – $238.7 million (€205M). Category performance increased 6.9% YoY. 

Cats came in second place with $114.4 million (€98M) in revenue, accounting for almost a third of total sales (28.8%). However, the category posted the highest yearly growth, by 10.2%, following a broader market trend. 

Fish & Aquatic Pets made $13.7 million (€12M) in revenue, representing a 3.4% share of sales and up 6.6% from 2025. 

Although it generated $6.8 million (€5.8M) in revenue and had the fourth-largest market share (1.7%), small animals were the only category to see lower revenue in 2026 than the previous year (-0.2%).

The top 5 was completed with bird supplies, which generated $6.4 million (€5.5M) in sales and posted the second-largest annual increase (9.7%).

Category winners

Food dominated sales for both dogs and cats, totaling over $80.7 million (€69M). However, other categories differed.

Dog owners prioritized the purchase of health supplies ($38.6M/€33M), treats ($34.3M/€29M), and collars, leashes and harnesses ($16.7M/€14M).

Cat owners, on the other hand, opted for litter and housebreaking tools ($25.4M/€22M), beds & furniture ($10.8M/€9.3M) and health supplies ($9.3M/€8M).

Top brands

Hill’s Science Diet was the champion brand of Amazon Pet Days in the dogs & all category, with $7.2 million (€6.2M) in revenue and  172,323 units sold. This represents a 50.9% jump in revenue and a 40.2% increase in products sold YoY, driven by a 14.7% increase in product views.

Hill’s Science Diet was one of the highlighted brands during the campaign and offered a medium-to-high discount (30%), compared to a range of 10% to 40% off. 

Blue Buffalo was the second best-selling brand during the period, with $6.4 million (€5.5M) in revenue and 361,851 units sold. Also offering 30% discounts on dog and cat treats and being highlighted in Amazon communications, the brand posted a 11.2% increase in value and 19.1% rise in volume YoY. 

Cat category

In the cat category, 2 Purina products generated the highest revenue. While Fancy Feast sold $6 million (€5.1M) and 277,764 units, Friskies raised $3.8 million (€3.3M) for 199,895 units. Both brands sold less in volume than a year earlier (-0.7% and -6.3%, respectively), but with higher value gains (+19.4% and +6.6%, respectively).

Purina was also among the highlighted deals, offering a $20 (€17) discount on purchases of $80 (€69) or more.

Hill’s Science Diet and INABA recorded higher yearly rises in the category. Both sold $2.5 million (€2.1M), with Hill’s growing by 35.2% of sales and INABA by 43.8%.

Consumers go for bulk

However, it was the Seresto brand that placed 2 of the best-selling dog products this year. Their Flea & Tick Collar For Dogs Over 18 pounds dominated the list, both in individual packs and packs featuring 2 items. Together, they sold $2.2 million (€1.9M) of over 38,000 units.

This shows that dog owners took advantage of the promotional event to reinforce protection against parasites, as the flea and tick season in the US typically runs from early spring. Additionally, functional products dominated consumer interest, with supplements and probiotics completing the best seller list.

Among cat owners, the preferences were divided between cleaning, health prevention and wet food, most of them in bulk packaging.

For instance, Dr. Elsey’s 40-pound cat litter bag sold 30,230 units ($655,479/€562,514), followed by packs of 24 cans of Purina Fancy Feast, packs of 40 cans of Purina Friskies Gravy and a variety pack of Hartz’s creamy squeezable puree and lickable treats. 

Double promotion deal 

This was the second shopping event targeting pet supplies in the US in about a month. The country celebrates National Pet Day on 11 April, and pet retailers and e-commerce operators also used the date to offer deals.

The occasion also helped drive a noticeable spike in pet supply revenue on Amazon, alongside increased search activity on Chewy, Petco and Walmart, as per data from Similarweb. 

Both results show that suggest that pet owners are increasingly engaging with these shopping opportunities in the US.