We Tracked 5 Years of Prime Day Data… Here's What Actually Works [The PPC Den Podcast]

Prime Day 2025 is here ( 8–11 July), and we’ve got something special for you.

Every year, like clockwork, we at Ad Badger dig deep into the data, dust off our best strategies, and sharpen our PPC claws for what’s basically the Super Bowl of Amazon selling. This year? We’ve packed everything we’ve learned since 2018 into one mega-episode—stories, missteps, wins, surprises, and a few controversial takes.

We talk about what actually happens to conversion rates, why ACoS drops while spend goes up, and how Prime Day isn’t just about the 48 hours—it’s about the before and after. You’ll hear about the exact moment one seller realized their campaigns were cannibalizing their own keywords. And why another seller got better results by doing... absolutely nothing.

We’ll see you in The PPC Den!

🦡 Highlights ​​

0:00 – Conversion rates jump on Prime Day (2018 data)
1:53 – Prime Day duration increased from 36 to 48 hours over the years
5:03 – Clicks surge by about 70% on Prime Day
6:11 – Sales increase by 130% on Prime Day
7:54 – Average daily ad spend rises by 78% on Prime Day
8:40 – ACoS (Advertising Cost of Sale) drops from 31% to 25% on Prime Day
12:57 – Recommended to increase budgets 2–3x on Prime Day, tapering up 1.5–2.5x in days leading up
14:04 – Increase bids by 10% across the board; 50–100% on top-converting products
17:39 – Huge conversion rate increase (~35%) during Prime Day, worth aggressive budget scaling
27:43 – Strategy to aggressively target customers pre-, during, and post-Prime Day for max impact

🦡 Resources & Links

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Find Michael Erickson Facchin — Ad Badger’s CEO and soul, PPC whisperer, and your go-to guide through the wild world of Amazon advertising
  / michael-erickson-facchin  
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Prime Day Preparation: Capitalizing on the Most Important Days of the Year
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Your Guide to Amazon Prime Day 2021
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How Do I Make the Most of Prime Day 2023 as an Amazon PPC-er?
https://www.adbadger.com/blog/amazon-...
When Is Prime Day 2025? Everything You Need to Know
https://www.adbadger.com/blog/when-is...
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Host and Executive Producer: Michael Erickson Facchin
Senior Producer: Nancy Lili Gonzalez
Podcast Coordinator & Graphic Designer: Sofiia Podash
Video and Audio Editor: Pedro Moreno