BrickCheck™
MMi 300
Minifig Market Index
BrickCheck™
SMi 400
Set Market Index
Coming Soon
SMi pipeline in development · Launching 2026
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BrickCheck™ Active 300 Index Figs · FMV Under $3 · Full Data Forever
▼ Show 44 figs
Index History
Minifig Index (MMi)
Themes — Minifig Index (MMi)
Index Methodology
The Formula
Proprietary Price Index — same methodology as national CPI.
P(t) = current used sold price · Q = March 2026 volume
Index = Σ[P(t)×Q(base)] / Σ[P(base)×Q(base)] × 100P(t) = current used sold price · Q = March 2026 volume
5 Admission Gates
All 5 required simultaneously:
G1 Data quality = Excellent
G2 ≥200 total historical sales
G3 Both new & used markets active
G4 Historical used avg > $0
G5 Historical used qty > 0
G1 Data quality = Excellent
G2 ≥200 total historical sales
G3 Both new & used markets active
G4 Historical used avg > $0
G5 Historical used qty > 0
Key Facts
Base period: March 2026 · Index = 100
Universe: 18,740 minifigures
Active constituents: 300 figs
Data source: BrickLink secondary market
Scrape cadence: Monthly (25th)
Historical series: Never revised
Universe: 18,740 minifigures
Active constituents: 300 figs
Data source: BrickLink secondary market
Scrape cadence: Monthly (25th)
Historical series: Never revised
FMV vs BrickLink Average
BrickCheck FMV outperforms BrickLink's raw average by blending:
50% completed transactions (actual sale prices)
50% trimmed asking prices (middle-40% of active listings — outliers removed)
Manipulation-protected. Updated every month.
50% completed transactions (actual sale prices)
50% trimmed asking prices (middle-40% of active listings — outliers removed)
Manipulation-protected. Updated every month.
Full methodology — chain-linking, subindex construction, MMi Score components, removal triggers — available to subscribers.
🏆 Appreciation Leaderboard — Active 300 Index
Top 100 →
Active 300 constituents ranked by appreciation since March 2026 base · Updated monthly
⭐ Star Wars Era Analysis — Proprietary BrickCheck Signal
📊 Market Concentration — Theme Dominance Analysis
💼 My Portfolio
Track your collection against current FMV · Add any fig from the detail panel
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Free: index readings, themes, FMV, MMi Score & Liq Rank (10 lookups/day).
Subscribers unlock:
Subscribers unlock:
- Collector $4.99/mo — MMi Score breakdown, My Portfolio (80 figs), price alerts
- Investor $11.99/mo — Unlimited lookups, full analytics, leaderboard, era split
- Collection Valuation — $99 / 20 figs · $179 / 40 figs (AI-assisted, expert verified)
- Certified Appraisal — from $225/hr · insurance, estate & legal documentation