Identity checkMatches
✓CardSV: Prismatic Evolutions #152/131 · Holo
✓Tracker matchWellspring Mask Ogerpon ex - 152/131 · SV: Prismatic Evolutions · #152/131
✓Raw pricePulse $17.40 vs tracker $17.52 (+1%)
✓Gem rate37.2% · GemRate · this printing
✓PSA 10 comp$119.99 · PokemonPriceTracker 90d · matched by product ID
✓PSA 9 comp$22.63 · PokemonPriceTracker 90d · matched by product ID
✓PSA 8 comp$22.80 · PokemonPriceTracker 90d · matched by product ID
Your grading resultsNone logged
Your results on this set: none graded yet
Your results on SV: none graded yet
SV grade odds use the starting assumptions until 5 SV grades are back.
Graded economics-65%
PSA 10$119.99PokemonPriceTracker 90d
PSA 9$22.63PokemonPriceTracker 90d
PSA 8$22.80PokemonPriceTracker 90d
Net EV−$58.97$32.24 net sale vs $91.21 cost
EV rangeEV range: -69% / -65% / -61% (pessimistic / expected / optimistic)Max buy: none (the pessimistic case can't return 20% at any price), with the card's value held at $17.40PSA 10 rate 35.5–38.9% (80% interval on 490 / 1317); 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 22% / 9 53% / 8 17% / ≤7 8%
PSA 10 ratePopulation 37.2% → adjusted 22.3% (SV, ×0.60 at $17 value, starting assumption)
Break-evenNeeds ≥ 92.4% adjusted (over 100% population)
CostsRaw $17.40 + shipping $5.00 + grading $59.99 (expected) + submission shipping $6.00 + time cost $2.82 = $91.21Net sale after fees: PSA 10 $97.58 · PSA 9 $14.02 · PSA 8 $14.17 · ≤7 $8.04PSA 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 splitSV grade split (starting assumption); ≤7 valued at 90% of raw
PSA 10/9 premium5.3x
PopulationPSA 10
Gem rate37.2%
PSA 10 pop490
Total pop1,317
SourceGemRate
PSA 10 velocity-
Total velocity-
SnapshotJun 22, 2026
Scarcity49/100
LabelWeak
Confidence100/100
Supply39/100
Demand29/100
Gem rate 37.2%PSA 10 pop 490/1317PSA 10/9 premium 5.3xSupply constraint 39/100
Raw validationconfirmed
TCG market$17.52
Pulse price$17.40
Delta+1%
CheckedNov 1, 2026
Wellspring Mask Ogerpon ex - 152/131PSA comps refreshed Nov 1, 2026PSA sales window 90 days
Signal context2
Support$16.81 floor, 4 tests
Drawdown39% off peak, Basing
*All-time high/low are within the tracked window (2025-02-08 - 2026-11-02). Raw, ungraded TCGplayer market price (blue) and cheapest listing (grey) via the free TCGCSV mirror. Personal, non-commercial prototype - not investment advice.