Comparing USD, USDT and XAUt lending on a consistent basis

USD, USDT and XAUt differ in asset exposure as well as interest rates. Choose a common measurement currency and observation period before comparing results.
Identify the asset
| Asset | Nature | Additional exposure |
|---|---|---|
| USD | Fiat dollar balance | Exchange custody and home-currency exchange rate |
| USDT | Dollar-targeted token | Issuer, reserves and depeg risk |
| XAUt | Gold-backed token | Gold price, issuer and redemption conditions |
USD is fiat, not a stablecoin. XAUt is not a cash substitute: its dollar value changes with gold even if the token quantity stays constant.
Separate interest from price returns
Assume one unit becomes 1.03 units by year-end and the price rises from 100 to 110, ignoring all fees. The ending value is 113.30, a 13.30% total return. This assumes all ending units are valued at the same closing price; different conversion paths require their own calculation.
If the ending price is 90, value is 92.70 and total return is −7.30%. A positive 3% token-denominated yield can coexist with a home-currency loss.
Avoid rankings from fixed rate ranges
Compare contemporaneous demand, compatible terms and adequate depth after costs. Fewer lenders in a small market can also mean fewer borrowers, not a higher fill rate.
An exchange’s dollar-equivalent threshold and the tool’s quantity floor must both be satisfied. Before changing assets to seek interest, include spreads, transfers and price exposure in the decision.
Related reading
- Managing multiple lending currencies: assets, exchanges and limits
- BTC, ETH and SOL lending versus staking: understanding token returns
Sources and verification date
Bitfinex Margin Lending · Tether Gold · Bitfinex Fees
2026-11-03.
This is operational and educational information. Illustrations are not promised returns. Exchange, liquidity and asset-price risks remain.
