The Cardboard Connection’s Top 100 eBay card auction tracker highlights the most-watched sports cards currently on the market. In this week’s update, seven of the top eight most-watched eBay card auctions are listed through Heystack, underscoring the platform’s growing presence in the hobby.

#1 Most-Watched Card on eBay

2024 Upper Deck Macklin Celebrini Outburst Red Young Guns RC /25
Seller: Slab Sharks
404 watchers | $12,141.16 current bid

The ultra-rare Celebrini rookie leads all auctions in visibility and bidding activity.


Other Top eBay Card Auctions Powered by Heystack

2005 SP Authentic Sidney Crosby Future Watch Auto RC PSA 9 Auto 10

Slab Sharks | 249 watchers | $6,646.92

2009-10 Topps Stephen Curry Gold Rookie PSA 9 (#/2009)

MC Sports Cards | 247 watchers | $13,801.00

1997-98 Skybox Premium Kobe Bryant Star Rubies BGS 8 (#/50)

MC Sports Cards | 241 watchers | $9,200.00

2013 Bowman Chrome Draft Aaron Judge RC Auto PSA 10

PC Sports Cards | 206 watchers | $6,500.00

2025 National Treasures Shedeur Sanders Gold Vinyl RPA Shield 1/1

dcsports87 | 202 watchers | $10,100.00

2021-22 Panini Immaculate Jokic / Doncic / Nowitzki Triple Auto /10

MC Sports Cards | 201 watchers | $4,600.00

From iconic rookie cards to modern ultra-rare patch autos, Heystack is powering the sellers driving some of the most-watched sports card auctions on eBay.

Heystack powers consignors, card shops, breakers, and dealers with tools built to increase efficiency and maximize performance across marketplaces.

To learn how Heystack can help grow your card business, contact hello@heystack.tech.