Two Tokenized Golds, Nearly the Same Size — but One Trades a Fixed Block and the Other You Mint and Redeem Like a Fund.

Tether Gold and PAX Gold are the two largest tokenized gold tokens, and on paper they are the same thing: a token, each ounce backed by a real ounce of allocated gold, worth roughly two billion dollars. Pull either one up on any data tracker and you get a single number — its size — and the two look like interchangeable versions of the same idea. Read what the tokens actually do on-chain, and they turn out to be built on opposite designs.

Start with the one that doesn't move. Tether Gold's supply on Ethereum — where about 98% of it lives — has been fixed at 612,824 ounces for two months: not a single new token minted, not one redeemed, from early June through late July. Yet the token is anything but idle — it changed hands tens of thousands of times over those same weeks. The supply is frozen; the trading isn't. That is the signature of a fixed block: a fixed pool of tokens that the market buys and sells among itself, without the issuer creating or destroying any along the way.

Part of that fixed block was never in public hands to begin with. About 94,923 ounces — roughly US$384 million, or 13% of what Tether Gold has minted— sits in a Tether reserve wallet, minted but not circulating. It's a disclosed choice, and it matches Tether's own reporting (707,747 ounces custodied against 612,824 circulating). We publish the circulating figure — the reserve is inventory held back from a one-time mint, not gold in the market. That reserve is the tell: you pre-mint a block, hold some back, and release it as demand arrives, rather than minting fresh tokens every time someone buys.

The other one breathes

PAX Gold works the opposite way. Over the same two months its supply didn't hold flat — it drifted down about 4%, from 464,217 to 444,865 ounces, in a series of small steps rather than one big move. That is what supply looks like when a token is minted and redeemed on demand: as holders subscribe, new tokens are created; as they redeem for gold or cash, tokens are destroyed and the supply falls. PAX Gold's supply breatheswith the flow of money in and out — the way an open-end fund's share count does. Tether Gold's doesn't, because its block is already minted.

Neither design is better; they are answers to different questions. A fixed block is simple and predictable — the supply is what it is, and the issuer isn't minting into every rally. A mint-on-demand model tracks real subscriptions and redemptions, so the supply itself is a live read on whether money is coming in or going out. What matters is that they are not the same product, even though they carry the same label and sit next to each other on every leaderboard.

Why the size number hides it

None of this is visible in the figure everyone quotes. Ask any tracker for the size of these tokens and you get one number apiece — an AUM total that treats a fixed, pre-minted block and a mint-on-demand fund as the same kind of thing. It takes reading the tokens' actual on-chain behavior — whether supply moves, whether new tokens are being issued or redeemed, and what sits in the reserve wallet — to see that one is closer to a fixed commodity token and the other closer to a fund. That difference changes practical things: how each responds when demand surges, whether you exit by trading or by redeeming, and what the headline “supply” number is even measuring.

It also fits a pattern this category keeps showing. Tether Gold and PAX Gold are the mature, broadly-held end of tokenized gold; the newer entrants look different again — Matrixdock's XAUM, a fraction of their size, is spread across four chains with nearly all of it in a handful of wallets. As with the funds we've measured before, the tokens that have been around longest have settled into clear, legible shapes — and the shape, it turns out, isn't one shape. Even within “tokenized gold,” there is more than one way to put an ounce on-chain.