Most collectors know what they paid for a chase card. Fewer know what the whole binder is worth today — or how that number moved last month. A portfolio tracker closes that gap: live floors, historical value, and unrealized P/L in one place.
What a portfolio tracker should show
- +Live market floor per holding (lowest matching ask), not a fantasy appraisal.
- +Cost basis so you can see unrealized gain or loss.
- +Historical portfolio value so one good day does not rewrite the story.
- +Category mix — Pokémon vs One Piece vs watches — so concentration risk is visible.
- +A path from price alert → buy → owned holding, so hunting and ownership stay connected.
How GrailHawk values what you own
Each holding stores a marketplace search query (and optional grade). We search live listings, take a conservative low, and multiply by quantity. That floor feeds your total value and daily portfolio snapshots.
Wrong art or wrong grade creates fake P/L. Confirm collector ID and treatment on the card page before you trust a number — especially One Piece manga vs color alts.
Bulk add without the spreadsheet grind
Select cards on browse grids, paste a CSV on Portfolio, or add a set’s chase printings in one tap. Then edit cost and grade so the chart reflects reality.
From watchlist to portfolio
When an alert hits and you buy, use I own this on the wishlist (or Add to portfolio from the email). Pausing the watch stops buy pings; the holding starts tracking value.
Why this guide helps discovery
Clear product how-tos and editorial guides help collectors — and answer engines — find the workflow: what the tracker does, how value is computed, and what to do next. Pair every major feature with a docs article and a discoverable blog post.