Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18
Topps Basketball 2025 · #SB-18 · updated 2026-11-06 · Price chart
| Price | 30d | 1y | |
|---|---|---|---|
| PSA 9 most traded | $319 | — | — |
| PSA 10 | $1,325 | — | — |
| Basketball index | — | ▼6% | ▲114% |
| Cooper Flagg index | — | ▼4% | ▼0% |
| Topps Basketball set index | — | ▼4% | ▲89% |
| Grade | Price | 30d | 1y |
|---|---|---|---|
| PSA 10 | $1,325 | 0 | — |
| PSA 9 | $319 | 0 | — |
| PSA 8 | $140 | 0 | — |
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About Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18
Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18 is a 2025 Pokémon card from Topps Basketball, number SB-18. Right now a PSA 10 sells for about $1,325; a PSA 9 sells for about $319; a PSA 8 sells for about $140, each the median of the newest three recorded sales inside 30 days.
We hold 14 recorded sales of this card going back to 2025-12. By venue: eBay 93%, Fanatics 7%. The most traded grade over the last 90 days is PSA 9.
PSA has graded 8 copies at PSA 10 and PSA 9 52, PSA 8 33. Population as of 2026-11-04, from PSA's cert records.
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Chart it: Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18 price chart by grade, against the Topps Basketball index or the card price charts and screener for any card, set, Pokémon or grade.
Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18 questions
How much is a Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18 worth?
About $319 in PSA 9, the most traded grade; a PSA 10 is about $1,325. Prices are the median of the newest three recorded sales inside 30 days.
How much is a PSA 10 Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18?
About $1,325. PSA has graded 8 copies at 10.
What is the PSA 10 premium on Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18?
A PSA 10 sells for 4.2x a PSA 9 right now ($1,325 against $319).
Where can I buy a Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18?
The Deals section on this page lists every auction of this card ending inside 24 hours and every Buy It Now the deal finder is pricing, each against the comp for its grade. Tap one to open it on eBay, or open the deal finder for every card.
What is the PSA population of Cooper Flagg 2025 Topps Basketball Sonic Boom #SB-18?
PSA 10: 8; PSA 9: 52; PSA 8: 33. As of 2026-11-04.