Prime Big Deal Days 2026 ran on October 6 and 7, and the first spending numbers are in. For sellers, the useful question is no longer how to prepare for the event. It is what the event data tells you to do in the next two weeks, because two hard deadlines land right behind it: Q4 peak fees start on October 15, and Black Friday and Cyber Monday deal submissions close on October 20.
Quick Answer
US online spending across all retailers reached about $9.86 billion during the two days of Prime Big Deal Days 2026, up 8.5% year over year, according to Adobe (via Retail Dive). Mobile drove 52% of that spend. For Amazon sellers, the next step is not celebration. It is harvesting the search terms your event traffic produced, retargeting the shoppers who viewed but did not buy, re-baselining bids before peak fees begin on October 15, and locking in Black Friday deals before the October 20 cutoff.
Key Takeaways
Adobe tracked $9.86B in US online spend over October 6 to 7, up 8.5% from $9.09B in 2025. These are third-party, all-retailer figures, so read them as directional for your own account.
Mobile carried 52% of spend and grew 12.8%, which makes your main image and first two bullets on a phone screen the real conversion test.
Shoppers compared prices hard. Numerator found about half of event shoppers checked Walmart’s competing sale.
Your event search term report is the most valuable PPC data you will get before Black Friday. Harvest it this week.
Peak fees start October 15 and Black Friday Week deal submissions close October 20. See our 2026 Amazon seller calendar for every Q4 date.
Amazon ran the event for 48 hours across 35+ categories and said shoppers would find over one million items at their lowest prices of the year so far, with new deals dropping three times a day (Amazon announcement). Amazon has not published its own sales total for the event. The best public read comes from Adobe Analytics, which measures online spending across US retailers, not just Amazon (Digital Commerce 360 coverage).
Metric
2026 Result
Context
Total US online spend (Oct 6 to 7)
$9.86 billion
Up 8.5% vs $9.09B in 2025
Mobile share of spend
52% ($5.1B)
Mobile spend up 12.8% YoY
Buy Now, Pay Later
6.0% of orders ($692.3M)
Up 4.0% YoY
Electronics vs September average
+85%
Headphones and speakers up about 300%
Toys vs September average
+158%
Early holiday gifting signal
Personal care vs September average
+73%
Strong for consumables brands
Category lift during Prime Big Deal Days 2026 vs September averages (Adobe data, all US retailers)
IMPORTANT: These are third-party estimates covering all US online retailers. Treat them as directional. Your own Business Reports and campaign data for October 6 to 7 are what should drive your decisions.
What the Numbers Mean for Amazon Sellers
Gifting categories woke up early
Toys up 158% and electronics up 85% against September averages means a lot of shoppers started holiday buying in early October. If you sell in a gifting category, some of your Black Friday demand has already been pulled forward. Expect a softer late October, and do not read that lull as a broken campaign.
Price comparison is the new normal
Numerator found that about half of Prime Big Deal Days shoppers compared prices at Walmart, which ran a competing sale. Average household spend was $114, below the $122 seen at June Prime Day. Shoppers were deliberate, not impulsive. Deals that were only a few percent off a recently raised price did not move people, and that pattern will be even stronger on Black Friday.
Mobile decides the click
With 52% of spend on phones, your listing gets judged on a small screen in seconds. If your main image does not read clearly at thumbnail size, or your price and coupon badge are not obvious, you pay for clicks that do not convert. Check your listing on a phone before you raise a single bid for Q4.
Your Post-Event PPC Playbook
Here is what we are running in client accounts this week, in this order.
1. Harvest the event search term report
Pull the search term report for October 6 to 7 for every Sponsored Products campaign. Event traffic surfaces search terms you never see in a normal week. Move converting terms into exact match campaigns, and add terms that spent with no sales as negatives. Our Amazon PPC audit checklist walks through how to read this report properly.
2. Retarget the shoppers who viewed but did not buy
Event days create a large pool of product viewers who did not convert. Use Sponsored Display views remarketing with a 14 to 30 day lookback to stay in front of them through Black Friday, when your deal goes live again.
3. Re-baseline bids, then cut event budgets back
Event conversion rates inflate performance. If you raised bids for the event, bring them back to pre-event levels now, then recalculate using your normal conversion rate. Our free ACoS and max bid calculator gives you a break-even bid in under a minute.
4. Rerun your deal math with peak fees included
From October 15, FBA fees rise for the holiday peak period. A Black Friday deal that worked on September margins may now lose money. Rerun your numbers using the updated rates in our Q4 holiday peak fees guide before you commit to a discount.
5. Check inventory before you scale anything
Event sales drain stock fast. If a hero product is low, running out in mid-November kills both your ad performance and your organic rank. Pull back spend on low-stock ASINs and push budget to products that can last through Cyber Monday.
COMMON MISTAKE: Judging October results by event-day ACoS alone. Event conversion rates are temporary. Look at TACoS over the full month, and use the post-event lull to clean up structure, not to cut every campaign. Our guide to lowering ACoS covers the right way to tighten spend.
The Two Deadlines You Cannot Miss
Date
What Happens
Action
October 15, 2026
Q4 FBA peak fees begin
Update margins and deal math
October 20, 2026
Black Friday Week and Cyber Monday deal submissions close
TIP: Amazon’s reference price checks look back at your recent price history. Do not raise prices now to make a November discount look bigger. Shoppers who compared prices in October will notice, and so will Amazon.
Amazon has not released a sales total. Adobe Analytics estimated $9.86 billion in US online spending across all retailers during October 6 and 7, up 8.5% year over year. That figure covers the whole US online market, not Amazon alone.
When were Prime Big Deal Days 2026?
The event ran for 48 hours on October 6 and 7, 2026. It was open to Prime members only.
What should sellers do after Prime Big Deal Days?
Harvest the event search term report, retarget product viewers with Sponsored Display, bring bids back to normal levels, rerun deal margins with peak fees included, and submit Black Friday and Cyber Monday deals before October 20.
Did October discounts hurt Black Friday deal eligibility?
Amazon advertising and listing specialists with 5+ years managing PPC and listing optimization for brands across the US, UK, and Canada. We publish what we apply in real seller accounts every day.
Send us your account and we will review your Prime Big Deal Days search terms, bids, and budgets, then show you exactly what to change before Black Friday.
