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Prime Day 2025 is in the books, and the top-line number is massive—$24.1 billion in U.S. eCommerce sales. But behind the scenes? Sellers are sounding off.

In this week’s episode of Selling on Giants – eCommerce News & Updates, Mr. Will breaks down what really happened during Amazon’s biggest shopping event of the year: why some brands saw record gains, while others got buried under Retail pricing and rising CPCs. We dive into seller sentiment, AI-driven product discovery, and what the post-Prime Day “halo effect” actually means for your Q4 strategy.

But while Amazon made noise, Walmart made moves—quietly launching a six-day Deals Week, pushing grocery bundles, and slashing Walmart Plus memberships. Their strategy? Outlast Amazon and lock in loyalty. Mr. Will breaks down why this matters for CPG brands and sellers eyeing omnichannel expansion.

Target’s not sitting still either. Roundel, their retail media network, just rolled out a new AI-powered ad platform that promises easier campaign setup and closed-loop attribution. Will it challenge Amazon and Walmart Connect? It depends on your category—and your expectations.

We also cover:

• L L M S dot T X T – a new open-source file that helps ChatGPT and other AI tools discover your brand in natural language search.
• Lessons from eCommerce founders who’ve lost millions—and why owning your numbers and acting fast matters more than ever.
• eBay’s push into graded comic books and authenticated collectibles
• Tariff-driven buying behavior and what the N R F says about early spending trends in June

If you’re a brand operator or agency partner navigating Amazon, Walmart, or Target, this episode gives you the clarity and strategic takeaways to move faster and plan smarter.

Listen now. Take notes. And start treating AI visibility the way you treat ad placement—strategically.