Price History
Opportunity Score
53- 14% below fair value+16 pts
- Reputable seller+7 pts
- Sales accelerating+7 pts
- High valuation confidence+7 pts
- High listing quality (graded)+6 pts
- Price up 13% over 30 days+5 pts
- Strong demand (17 sales/mo)+5 pts
Investment Thesis
bullish86Blastoise Promo (BGS 9) is currently modestly undervalued, with rising price momentum over the last 30 days (+13.3%). Estimated fair value is $468 against a lowest active listing of $403. Valuation confidence is high based on 15-plus recent comparable sales.
Bullish: rising prices (+13.3% over 30d) with healthy trading velocity and rising graded population (5.2%/mo).
Risk Indicators
- Rising graded population may pressure prices
How Fair Value Is Built
A transparent, weighted blend of market signals — no black boxes.
| Signal | Detail | Reference | Weight |
|---|---|---|---|
| recent sales | Volume-weighted average of recent sold comps | 466.34 | 50% |
| listing inventory | Average of active listing asking prices | 445.2 | 25% |
| price trend | Recent historical price trend projection | 481.93 | 25% |
| population pressure | Adjustment for grading population growth (more supply lowers value) | -2.61 | 50% |
| demand momentum | Adjustment for sales velocity momentum (rising demand raises value) | 3.38 | 20% |
Active Listings
| Price | Marketplace | Condition | Seller | Listed | Ends | Link |
|---|---|---|---|---|---|---|
| $444 | TCGPlayer | Graded | 95 | 7d ago | Jan 1 | View |
| $451 | eBay | Graded | 80 | 23h ago | Jan 1 | View |
| $454 | TCGPlayer | Graded | 73 | 9d ago | Jan 1 | View |
| $467 | eBay | Graded | 87 | 10d ago | Jan 1 | View |
| $483 | eBay | Graded | 73 | 4d ago | Jan 1 | View |
| $496 | eBay | Graded | 89 | 17d ago | Jan 1 | View |
| $501 | PWCC | Graded | 64 | 9d ago | Jan 1 | View |
| $503 | TCGPlayer | Graded | 89 | 14d ago | Jan 1 | View |
| $514 | PWCC | Graded | 71 | 23h ago | May 31 | View |
| $531 | TCGPlayer | Graded | 79 | 18d ago | Jan 1 | View |
| $533 | eBay | Graded | 64 | 3d ago | May 31 | View |
| $542 | eBay | Graded | 95 | 3d ago | Jun 3 | View |
Recent Sales
| Price | Marketplace | Condition | Sold |
|---|---|---|---|
| $408 | eBay | Graded | 5d ago |
| $405 | eBay | Graded | 5d ago |
| $485 | Mercari | Graded | 12d ago |
| $449 | Mercari | Graded | 17d ago |
| $491 | PWCC | Graded | 18d ago |
| $451 | eBay | Graded | 21d ago |
| $461 | Mercari | Graded | 21d ago |
| $423 | Facebook Marketplace | Graded | 22d ago |
| $466 | TCGPlayer | Graded | 26d ago |
| $419 | eBay | Graded | 32d ago |
| $471 | Mercari | Graded | 34d ago |
| $468 | PWCC | Graded | 34d ago |
Signal Track Record
Did this asset's own Opportunity Scores precede outperformance? Each row is a past as-of date, scored point-in-time, with the realized benchmark-relative return that followed.
Data Provenance
Which signals on this page are real market data versus modeled by the deterministic engine. The terminal marks every source honestly.
- Reference price
- Simulated
- Card image
- Simulated
- Recent sales
- Simulated
- Population data
- Simulated
- Liquidity metrics
- Simulated
- Price history
- Simulated
Related Assets
Same character or set.
| Asset | Fair Value | Lowest | Discount | 30d | Avail | Score |
|---|---|---|---|---|---|---|
Base ZardBase SetPSA 10Simulated
| $9,423 | $9,196 | 2.4% | 34.7% | 4 | 47 |
Rayquaza ex (Illustration Rare)Base SetSimulated
| $948 | $828 | 12.6% | 8.8% | 23 | 46 |
Base Set Booster Box (Sealed)Base SetSimulated
| $48,098 | $41,111 | 14.5% | 11.9% | 10 | 55 |
Umbreon ex (Special Illustration)Base SetSimulated
| $2,063 | $1,703 | 17.4% | 24.9% | 20 | 43 |
Pikachu Ultra RareBase SetBGS 9Simulated
| $1,270 | $1,234 | 2.8% | 45.3% | 4 | 46 |
Mewtwo Ultra RareBase SetPSA 10Simulated
| $1,991 | $1,908 | 4.2% | 6.3% | 7 | 42 |