Key Takeaways
- Tether is buying gold at an institutional scale. It said it added 27 metric tons in Q4 2025.
- XAUT is still the category leader, but dominance is slipping. Year-end reporting shows full 1:1 backing, yet market share has tightened as tokenized gold expands.
- Stablecoin reserve stories are going “macro.” U.S. Treasuries remain the core, but gold is now large enough to shape how traders talk about USDT’s backing.
Tether said Monday it added about 27 metric tons of gold in Q4 2025, extending a run of heavy bullion buying as the issuer of USDT and Tether Gold (XAUT) leans further into “hard” collateral.
The move lands as gold hits new highs. Spot gold surged to a record $5,110.50 per ounce on Jan. 26, as investors piled into safe havens amid rising geopolitical tension and market volatility.
For crypto markets, the headline is not just that Tether bought gold. It’s that the company is increasingly behaving like a macro allocator at a time when stablecoin reserves are under a microscope.
U.S. Treasuries Still Dominate USDT, But Gold Is Now Meaningful
Tether remains primarily backed by U.S. Treasuries, but gold has become a visible part of its reserve mix.
In its latest publicly available reserve snapshot, Tether reported holding $12.9 billion in gold as part of the broader reserves supporting USDT.
That equated to about 104 tons at then-market prices. Gold represented about 7% of reserves at the end of September 2025.
XAUT Is Growing, But The Tokenized Gold Market Is Growing Faster
Tether’s gold strategy is not only about USDT. The company also issues Tether Gold (XAUT), a token that represents ownership of physical gold.
Tether CEO Paolo Ardoino framed the push as a credibility play at scale.
He said the Tether Gold Investment Fund now operates “alongside sovereign gold holders,” adding that XAUT aims “to remove ambiguity” as confidence in monetary systems weakens.
A year-end assurance report for TG Commodities S.A. de C.V. said the custodian held 520,089.350 fine troy ounces of gold as of Dec. 31, 2025, backing 520,089.300000 XAU₮ in circulation on a 1:1 basis.
The report also said it uses IFRS recognition and measurement principles, while noting it does not include the full statements required to comply with IFRS.
The same report said the gold bars meet LBMA “London Good Delivery” standards and are vaulted in Switzerland.
At the end of 2025, XAUT accounted for about 60% of the global gold-backed stablecoin market, with 16.2 tons of gold backing the token as of December.
But competition is intensifying. XAUT’s share has narrowed in January as the sector’s market cap expanded, even as its supply increased.
CoinGecko data puts the tokenized gold category at roughly $5.3 billion today, with XAUT having a market cap of around $2.6 billion.
Reserve Narratives Are Shifting
In crypto, “reserve composition” is not a nerd footnote. It’s the credibility layer.
Treasuries are boring in the way markets behave during stress. Gold plays a different role. It is liquid globally, but it is not a cash equivalent.
That leads to the clean “what if” question: What if there is a sharp risk-off move and stablecoin redemptions spike?
In that scenario, the market typically cares less about diversification and more about how fast assets can be turned into dollars without friction.
Tether’s bet appears straightforward. Gold is rising, demand is broad, and the macro narrative is supportive.
PhD, researcher and writer exploring AI, blockchain, and the philosophy of tech, with a focus on DeScAI, governance, and trust.
