Set ↗30d+11%not clear yet90d+25%1y+91%
This card30d 90d 1y All-time 

Marty Gras #135b 1986 Garbage Pail Kids Series 4 · PSA 8

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PSA pop19

PSA 8 · 1986 Garbage Pail Kids Original Series 4 →

— Hold · next 3 monthsIts one sale in the last 3 months was $15, up from about $13, what it sold for in the nine months before, in step with its set. Cards like this have risen about 4% over the next 3 months (1,396 cards since 2019).
PSA pop · this parallel
19
Card # 135b⇄ 135ARock E. Horror
GPK Price Guide Value iBased on this card’s sales at this grade: the newest sale ($15, Sep 11) counts most; kept in grade order with its other grades (level with them at $18; $17 before that); and similar cards point to about the same ($18).
$18
PSA 8 · from 7 real sales · last sold Sep 11
PSA 10 comp $66
🟢 lowest on eBay: $46.98 all-in
🛒 1 listing on eBay now PSA 8 SLAB
RAW (UNGRADED) — NOT A GRADED VALUE
$2
50 raw sales used for this value view raw sales →
● real comps ● est. — own older sales ● est. — never sold ● unsold
Price history · PSA 8
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
2026-09-11$15PSA 8102912792 ↗BestOffer
2026-03-24$12.50PSA 891767767 ↗Auction
2025-02-13$8.99PSA 894411105 ↗FixedPrice
2024-12-06$12.50PSA 891767766 ↗Auction
2024-08-13$21.19PSA 891767767 ↗Auction
2024-08-01$11.50PSA 870780107 ↗Auction
2020-02-02$11.99PSA 841686435 ↗Auction

🗑️ The Garbologist says…

Too Few Recent Sales
The Garbologist sniffed around the sales pile.
  • 7 recorded sales · 2 in the last year · trades only a few times a year · moderate-confidence sample.
  • Its last few sales went $21 → $12 → $9 → $12 → $15 — ran up to a peak of $21, then cooled back off.
  • Census check: PSA has graded 171 of this card, and only 33.9% come back a 10 — gems fairly readily.
  • None

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.

Marty Gras — across every card

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

🧬 Should I slab it?

Keep it raw

Only about 1 in 3 copies of this card get a 10, and a 9 is worth $34 — less than the $92 it costs to grade. Even a 10 ($73) would leave you about -$19 after costs, not more than raw.

Expected value if gradedunder $0 (the likely slab, $42, is $50 short of the $92 all-in cost)
Raw value today$2 (from 50 raw sales)
VerdictKeep it raw

Even a PSA 10 would not beat the raw value.

Chance of a PSA 10
34%
this card · 171 graded
PSA 10 value
$66
today · ~$73 by Feb 12, 2027
PSA 9 value
$31
today · ~$34 by Feb 12, 2027
All-in cost
$92
PSA fee $60 + shipping both ways $32
How these numbers work
All-in cost $92: PSA Standard tier fee $60 per card, insured shipping to PSA ~$12, PSA insured return shipping ~$20. Sending it to your PSA Vault instead skips return shipping (vault intake and storage are free): ~$72 all-in, so a graded copy would net ~under $0.
Grade odds (this card, 171 PSA-graded): 10 · 34%, 9 · 33%, 8 · 11%, 7 or lower · 22%. People send their best copies, so a random raw copy usually grades a bit lower.
Values when it comes back (~95 days, about Feb 12, 2027): today's values +10% (half the set's 3-month rise of 25%, capped at +10%).
Expected value if graded = each grade's chance × its value, minus the all-in cost. A guide, not a guarantee — centering and corners on your copy decide the grade.

Marty Gras #135b 1986 Garbage Pail Kids Series 4 value by grade

GradeValueSalesPSA pop
PSA 10$662958
PSA 9$313756
PSA 8$18719
PSA 7$18614
PSA 6$14 est.09
PSA 5$13111
PSA 4$1323
PSA 3$9 est.01

Every grade of this card on one page. Est. = no sale at that grade yet. Tap a grade above to switch the whole page to it.

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