eBay & Whatnot Flipping Strategies April 2026: Hot Sports Card Lots Trending in the Last 3 Days

Hey collectors, it’s the big day, and let’s get things started! The window of April 27-29, 2026, has triggered a massive surge in bulk lot activity. If you want to master flipping sports cards on eBay right now, the data is clear: the highest margins aren’t in white whale singles, but in …