modern-to-grade · holo
Thundurus-GX
SM Black Star Promos · #SM133 · English · released 2017
Raw market price
$3.72
7 days
▼ 0.8%
30 days
▲ 3.9%
90 days
▲ 7.2%
Graded prices & PSA population
| Grade | Market price | PSA population |
|---|---|---|
| PSA 10 | $138.00 | 31 |
| PSA 9 | $20.00 | 52 |
| PSA 8 | $4.00 | 11 |
PSA population recorded 2026-10-18 · total graded 101
Why this card matters
pop
119 listings and a raw price of just $4 suggest abundant supply; the PSA 10 premium is real but rests on a single sale (n=1), making it statistically fragile.
demand
Thundurus-GX is a secondary Legendary with limited nostalgia pull and no competitive meta presence driving collector demand today.
artist
Standard SM-era holo promo illustration with no standout alt-art or notable artist attribution to elevate desirability.
catalyst
30-day momentum is already negative at -4.4% with no known reprint scare, set rotation, or cultural moment to reverse the trend.
Graded comps on record
$138.00
PSA 10
$20.00
PSA 9
$13.00
CGC 10
$12.00
CGC 9
$4.00
PSA 8
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More from SM Black Star Promos
Market data recorded 2026-10-10 from licensed market sources. MASTER records prices daily and never invents a number — estimated values are always labeled. Not financial advice.