The next milestone in the Caitlin Clark trading card market will likely arrive later this month when her most important insert card sells in the 2025 Summer Goldin 100.
Lot No. 1 in the auction, bidding for Clark’s 2024 Rookie Royalty WNBA Green Kaboom 1/1 will open Monday with a starting price of $50,000.
Considered among the most important insert sets of the ultra-modern era, Kaboom cards feature comic book-inspired art and carry a significant premium on the secondary market. First created as a chase for Panini America’s 2013-14 Innovation Basketball, Kaboom has since grown to become one of the most coveted cards for each of its subjects.
Originally designed with a basic silver background, Panini has since added Gold parallels numbered to 10 and the Green 1/1. To date, the most expensive sale for any Clark insert, according to data tool Card Ladder’s public records, is the $80,000 paid in a private sale for a Gold parallel in July.
The highest recorded sale for a Kaboom of any athlete is the $225,000 paid in a private sale for a 2018 LeBron James Gold Kaboom /10 in 2024.
The Clark card up for bid at Goldin also represents just the second Green Kaboom to achieve a BGS Pristine 10 grade. In total, Beckett has graded 93 Green Kabooms across all players and sports.
RELATED STORIES:
- Caitlin Clark Immaculate Logowoman rookie card sells for $317k
- 'We ran around the house screaming!' Collector pulls Caitlin Clark Logowoman 1/1
- Ken Goldin on Caitlin Clark, repacks and being the "King of Collectibles"
- Caitlin Clark Downtown insert will be one of her key chase cards
- Rookie Royalty WNBA release ends at $3,000 floor in Dutch auction
The latest ultra high-end Clark card to hit the auction block, the Green Kaboom closely follows the sale of Clark’s Immaculate Logowoman 1/1, which sold at Goldin for $317,200 on Saturday.
To date, the most expensive sale for any Clark card is the $660,000 paid for the Flawless Logowoman 1/1 in July, the top card sale ever for a female athlete.
Goldin didn’t place a pre-sale estimate on the Green Kaboom, but the pairing of an ultra-rare insert in an ultra-rare grade positions the card to land among Clark’s highest recorded sales.
Ben Burrows is a reporter and editor for cllct, the premier company for collectible culture. He was previously the Collectibles Editor at Sports Illustrated. You can follow him on X and Instagram @benmburrows.