Sealed sets, built displays, rare minifigures
The LEGO investment tracker for collectors who treat sets like assets
Stop guessing whether your sealed UCS sets are outpacing the S&P. CollectFolio pulls live BrickLink and eBay prices, tracks retirement dates, and shows real ROI per set.
LEGO is a real asset class. It deserves a real ledger.
A 2023 study of 2,300 retired LEGO sets found median annualized returns of 11%, with top performers exceeding 30%. Compare that to the S&P 500's ~10% and the appeal is obvious.
But "LEGO as investment" only works if you know what you own, what it cost, and what the market is paying today. Most collectors track this in a spreadsheet that goes stale the moment a set retires.
Built for LEGO collectors
Set number lookup
Type the set number (e.g., 10294, 75192). We auto-fill name, theme, year, piece count, and retail price.
Sealed vs built vs loose
Track condition separately. A sealed 10179 Millennium Falcon commands $4,000+. A built one without the box: $700. Both are real prices you should know.
Retirement alerts
We watch the LEGO catalog for retirement announcements. The day a set retires, you get a notification — that's when secondary prices start moving.
Minifigure tracking
Rare and exclusive minifigures (Comic-Con, promos, limited polybags) tracked as separate line items with their own price history.
Theme performance
See which themes are appreciating fastest: Star Wars UCS, modular buildings, Ideas, Technic, City. Your portfolio vs the index.
Storage & insurance
PDF inventory reports for insurance. Photo uploads for proof of condition. Replacement value calculations for collectors policies.
LEGO investment FAQ
- On average, sealed LEGO sets appreciate 11% annually after retirement, per a 2023 BrickPicker / Moscow State University study. Top performers (modular buildings, Star Wars UCS, Ideas sets) return 15-30%+. Used sets built and displayed typically do not appreciate — they hold or decline.
- Discontinued Star Wars Ultimate Collector Series (UCS), modular buildings (10182, 10197, 10218, etc.), and Ideas/CUUSCO sets. Recent examples: 75192 Millennium Falcon (retail $850, secondary $1,800+), 10294 Titanic (retail $680, secondary $1,100+).
- We pull from BrickLink used/new sold, eBay sold listings, and Bricks & Minifigs marketplace data. Median sold across sources, updated weekly. Set number, theme, year, and piece count all auto-populate from the LEGO catalog.
- Track them separately. Built and displayed sets with all pieces and original box have modest premium. Loose built sets without boxes typically depreciate. Sealed sets appreciate most reliably.
- Rare and exclusive minifigures (Comic-Con exclusives, promos, limited polybags) tracked as separate line items. We aggregate prices from BrickLink minifigure marketplace and eBay sold.
Is LEGO a good investment?
Which LEGO sets are worth the most?
How does CollectFolio track LEGO values?
Should I track built sets vs sealed?
What about minifigures?
See if your collection is actually beating the market
Beta opens Q3 2026. Join the waitlist for early access to the LEGO tracker.