Identity checkMatches
✓CardSV: Prismatic Evolutions #159/131 · Holo
✓Tracker matchSandy Shocks ex - 159/131 · SV: Prismatic Evolutions · #159/131
✓Raw pricePulse $21.51 vs tracker $23.54 (+9%)
✓Gem rate38.7% · GemRate · this printing
✓PSA 10 comp$104.17 · PokemonPriceTracker 90d · matched by product ID
✓PSA 9 comp$39.99 · PokemonPriceTracker 90d · matched by product ID
✓PSA 8 comp$24.38 · 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-60%
PSA 10$104.17PokemonPriceTracker 90d
PSA 9$39.99PokemonPriceTracker 90d
PSA 8$24.38PokemonPriceTracker 90d
Net EV−$57.24$38.23 net sale vs $95.47 cost
EV rangeEV range: -63% / -60% / -57% (pessimistic / expected / optimistic)Max buy: none (the pessimistic case can't return 20% at any price), with the card's value held at $21.51PSA 10 rate 37.2–40.2% (80% interval on 691 / 1785); comps ±5.0% (comp quality 93). The 80% interval, the comp band and the ×0.5 / ×1.5 fallback without population counts are starting assumptions.
Outcome mix10 23% / 9 52% / 8 17% / ≤7 8%
PSA 10 ratePopulation 38.7% → adjusted 23.5% (SV, ×0.61 at $22 value, starting assumption)
Break-evenCan't break even at these prices
CostsRaw $21.51 + shipping $5.00 + grading $59.99 (expected) + submission shipping $6.00 + time cost $2.97 = $95.47Net sale after fees: PSA 10 $84.00 · PSA 9 $28.92 · PSA 8 $15.53 · ≤7 $11.21PSA 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 premium2.6x
PopulationPSA 10
Gem rate38.7%
PSA 10 pop691
Total pop1,785
SourceGemRate
PSA 10 velocity-
Total velocity-
SnapshotJun 22, 2026
Scarcity37/100
LabelWeak
Confidence100/100
Supply38/100
Demand25/100
Gem rate 38.7%PSA 10 pop 691/1785PSA 10/9 premium 2.6xSupply constraint 38/100
Raw validationconfirmed
TCG market$23.54
Pulse price$21.51
Delta+9%
CheckedOct 20, 2026
Sandy Shocks ex - 159/131PSA comps refreshed Oct 20, 2026PSA sales window 90 days
Signal context1
Drawdown66% 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.