Identity checkMismatch
✓CardSkyridge #137/144 · Rev Holo (1 of 2 printings)
✓Tracker matchMystery Zone · Skyridge · #137/144
✕Raw pricePulse $19.99 vs tracker $8.47 (-58%)
✓Gem rate10.2% · GemRate snapshot enrichment · this printing
!PSA 10 comp$76.78 · PokemonPriceTracker 90d · matched by product ID
!PSA 9 comp$21.70 · PokemonPriceTracker 90d · matched by product ID
✓PSA 8 comp$20.50 · PriceCharting crawler · this printing
Your grading resultsNone logged
Your results on this set: none graded yet
Your results on Vintage: none graded yet
Vintage grade odds use the starting assumptions until 5 Vintage grades are back.
Graded economics-85%
PSA 10$76.78PokemonPriceTracker 90d
PSA 9$21.70PokemonPriceTracker 90d
PSA 8$20.50PriceCharting crawler
Net EV−$79.55$14.34 net sale vs $93.89 cost
EV rangeEV range: -87% / -85% / -82% (pessimistic / expected / optimistic)Max buy: none (the pessimistic case can't return 20% at any price), with the card's value held at $19.99PSA 10 rate 6.8–15.1% (80% interval on 9 / 88); comps ±7.5% (comp quality 85). The 80% interval, the comp band and the ×0.5 / ×1.5 fallback without population counts are starting assumptions.
Outcome mix10 5% / 9 43% / 8 29% / ≤7 24%
PSA 10 ratePopulation 10.2% → adjusted 4.6% (Vintage, ×0.45 at $20 value, starting assumption)
Break-evenCan't break even at these prices
CostsRaw $19.99 + shipping $5.00 + grading $59.99 (expected) + submission shipping $6.00 + time cost $2.91 = $93.89Net sale after fees: PSA 10 $60.49 · PSA 9 $13.22 · PSA 8 $12.19 · ≤7 $10.04PSA tier: Standard $59.99; about 133 days at PSA. PSA and eBay fees from their official pages; eBay fees include 7% sales tax in their base; that, the shipping and the 10%/yr time cost are your assumptions (Settings).
Grade splitVintage grade split (starting assumption); ≤7 valued at 90% of raw
PSA 10/9 premium3.5x
PopulationPSA 10
Gem rate10.2%
PSA 10 pop9
Total pop88
SourceGemRate snapshot enrichment
PSA 10 velocity-
Total velocity-
SnapshotJun 20, 2026
Scarcity68/100
LabelWatch
Confidence92/100
Supply81/100
Demand14/100
Gem rate 10.2%PSA 10 pop 9/88PSA 10/9 premium 3.5xSupply constraint 81/100
Raw validationprice mismatch
TCG market$8.47
Pulse price$19.99
Delta-58%
CheckedOct 13, 2026
Mystery ZonePSA comps refreshed Oct 13, 2026PSA sales window 90 days
Signal context2
Support$18.46 floor, 2 tests
Drawdown33% off peak, Basing
Other printings of this card
*All-time high/low are within the tracked window (2024-03-08 - 2026-10-14). Raw, ungraded TCGplayer market price (blue) and cheapest listing (grey) via the free TCGCSV mirror. Personal, non-commercial prototype - not investment advice.