Portfolio Tracker

What it does

Your personal LEGO investment dashboard. Every set you buy is logged with cost basis (including margin-stack adjustments), target exit price (auto-calculated from the 250% net ROI doctrine), expected maturation date, and live secondary-market comps pulled from Amazon, eBay sold listings, and BrickEconomy. When a set's current market price crosses your target threshold, you get a push alert: 'READY TO LIST.'

Why it matters

Without this tool, members are reduced to spreadsheets and weekly eBay browsing. The single biggest failure mode in LEGO investing isn't bad picks — it's missing the exit window. A set might hit its target price for a 2-week window then settle 30% lower as new supply hits the market. The tracker catches that window automatically.

Core features

• Acquisition logging with auto-Stack-Calculator integration
• Live Amazon, eBay sold, BrickLink, BrickEconomy comp aggregation
• Target exit price calculation per doctrine
• Maturation date tracking + reminders
• READY TO LIST push alerts (mobile + email)
• Portfolio P&L view: deployed capital, projected return, realized return, time-weighted IRR
• Tag/group sets by acquisition source, theme, or strategy

Example flow

1. Buy LEGO 10316 LOTR Rivendell at $499 with 2x VIP + 5% cashback
2. Tracker auto-calculates real cost basis ≈ $425
3. Target exit auto-set to $1,488 (250% net of $425)
4. Maturation reminder set for 2027-Q3
5. Daily comp refresh runs against Amazon/eBay
6. Alert fires when net-of-fees comp exceeds $1,488 for 7 consecutive days

Wireframe