Marquez Holdings builds a small number of applications, owns them outright and operates them directly. There is no fund, no portfolio company and no outside capital. A venture ships when it is correct, opens from a link without an install, and stays small enough that one team can be answerable for every number it displays.
Collectors are served by software that knows what a card or a figure is worth, and badly served by software that guesses. The distinction is not academic: it decides whether a portfolio total is a fact about your collection or a fact about the gaps in a price list.
Nearly every tracker resolves that tension the same way — by treating a missing price as a zero and a partial collection as a whole one. The result is a headline figure that is never wrong in a way you can see, and therefore never right in a way you can trust.
Both ventures take the opposite position. A vault should hold the catalogue, the collection, the prices and the mathematics on the device in the collector’s hand, and it should be able to account for what it does not know as precisely as for what it does. What differs between the two products is only the collection: cards in one, vinyl figures in the other.
Both are browser applications. Neither asks you to install anything.
Four trading card games in one vault, each with its own catalogue, collection, portfolio and price series — Magic: The Gathering, Pokémon, Yu-Gi-Oh! and Disney Lorcana — with the price engine computed in the page.
A 20,497-figure catalogue, three prices for every Pop, and the full portfolio arithmetic — cost basis, concentration, drawdown, volatility and a forecast with an uncertainty band.
A feature that reports an honest partial answer is worth more than one that reports a complete-looking wrong answer. Where data is missing, the product names the gap and carries it into every figure derived from it.
A vault that opens from a link is available on whatever machine you are already using, including the one that is not yours. That decision also keeps the computation on the client, where it belongs, instead of on a server that has to be paid for and trusted.
The ventures are deliberately few. Everything shipped is something the company can stand behind, support and correct, and nothing is shipped that the company could not explain line by line.
Both products describe third-party catalogues of third-party brands. Neither is affiliated with, endorsed by or approved by the companies whose products their users collect, and neither claims to be.