Why a live watchlist beats a spreadsheet or a binder
A binder or a spreadsheet only tells you what your Pokemon cards were worth the last time you sat down and updated it by hand, and card prices move faster than most collectors update a spreadsheet. Double Holo's watchlist is not a full inventory system with quantities, purchase cost, and storage locations. It is a live list of the specific cards you own or want, each one showing its actual current market price instead of a number you typed in months ago.
You build it by searching Double Holo's catalog and adding any card, raw or sealed, whether you already own it or you're deciding whether to buy. Every entry tracks that card's live market price, built from real recent sales rather than a listed asking price. A watched entry follows the card itself rather than one specific graded slab, so to check what that same card is worth in a particular grading company and grade, you open its Market Data view and switch the grade context there.
Above your list, Double Holo adds up the current price of everything you're tracking into a single watchlist value, with its own trend chart and a percentage move over the last day, week, or month. That is a fast read on which direction your tracked cards are heading as a group, not a full portfolio total: each card counts once toward that number no matter how many physical copies you actually own, since the watchlist tracks cards, not quantities.
Each card also carries signals a static list can't produce on its own: community sentiment from the last week of chatter, a Grading ROI percentage comparing that raw card's value to what a graded copy sells for after fees, and a short-term price forecast direction. You can also turn on a bell per card to get notified when it moves; Double Holo's dedicated price alerts page covers exactly how those notifications work across plans.
See what your cards are worth, today
Add the cards you own or want to your watchlist and get live prices, a combined value trend, and grading and sentiment signals for every one, included with any paid Double Holo plan.