— Hold· thin volume
PSA pop · this parallel
12
Card # 16a⇄ 16BAlien Attack Adam
GPK Price Guide Value iGPK Price Guide Value is a recency-weighted market value from REAL sales of this exact card+grade (recent comps count most, outliers stripped) — steadier and harder to game than a single 'last sale', which can be one lucky auction or a shill bid. When a card has few or no recent comps, we estimate transparently from its own older sales, its other grades, and comparable cards (same subject/set/rarity tier), factoring subject trend and scarcity — and we LABEL it as an estimate until real sales arrive.
$94
PSA 10 · highest-graded comp
🟢 lowest on eBay: $275.45 all-in
🛒 2 listings on eBay now PSA 10 SLAB ×1 · RAW ×1
RAW (UNGRADED) — NOT A GRADED VALUE
$8
guide value (not a sale) view raw sales →
● real comps ● est. — own older sales ● est. — never sold ● unsold
Price history · PSA 10
On-the-record sales go back as far as PSA reports them — late 2017 for GPK — plus eBay-tracked and raw sales as they land.
DatePriceGradeCertType
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🗑️ The Garbologist says…

Too Thin To Call
The Garbologist sniffed around the sales pile.
  • Only 1 recorded sale on the books — not enough for a trend without kidding ourselves. The last one changed hands at $120 on 2025-05-04.
  • With this little to go on, the honest answer is we can't call a direction — one auction would swing the whole read.

Automated analysis generated from this card’s real recorded sales and PSA population data — no opinions, no predictions guaranteed. Entertainment and research only, not financial advice.

Chase Invaders — across every card

Subject page →
Every Chase Invaders card we track — how the character is moving, not just this one grade.

🧬 Should I slab it?

SAVE YOUR MONEY

Only a 52% gem rate on this card's own PSA pop - graded pop is self-selected (best copies get submitted), so a random raw likely grades lower. Expected ~$64 before the $80 PSA fee (fee only - excludes shipping & insurance), ~$-16 after - near or below a raw copy ($8 (guide value, not a sale)). Not worth grading unless you are confident it is a 10.

Gem (PSA 10) rate
52%
this card · 23 graded
PSA 10 value
$94
if you hit the ten
Grading cost
$80
PSA Regular tier
Expected after grade
$-16
vs raw $8 (guide value, not a sale)

Probability-weighted across grades using PSA population (this card) as a proxy for cut & print quality, minus the grading fee. A guide, not a guarantee — centering and eye-appeal on your specific copy decide the grade.

GPK Price Guide
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