USDD 

USDD Price

What is the USDD stablecoin?

USDD (Decentralized USD) is a decentralized stablecoin pegged to the US dollar and native to the TRON blockchain. The TRON DAO Reserve launched USDD in May 2022. USDD initially ran a semi-algorithmic design, then was repositioned as an over-collateralized stablecoin backed by a reserve basket of crypto assets. In January 2025 the protocol migrated to USDD 2.0 — a Maker-style vault architecture with a Peg Stability Module. USDD serves TRON-ecosystem payments, DeFi collateral, PSM swaps, and settlement on Tron.

How is USDD different from USDT?

USDT is a centralized, fiat-backed stablecoin issued by Tether. USDD is a decentralized stablecoin backed by on-chain crypto collateral and governed by the TRON DAO. USDD's collateral sits in protocol vaults — TRX, BTC, USDT, and USDC — rather than in an issuer's off-chain reserve portfolio. USDD is native to TRON, with additional deployments on Ethereum, BNB Chain, Arbitrum, Optimism, and Near. The structural difference changes the risk: USDD depends on crypto collateral quality, fiat-backed stablecoins depend on issuer reserve management.

What reserves back USDD's value?

A reserve basket of crypto assets backs USDD: TRX, BTC, USDT, and USDC. USDD launched in May 2022 with a 130% minimum collateralization target. After the June 2022 depeg, a public dispute over counting volatile TRX inside the reserves marked USDD's early history — later versions lean on USDT, USDC, and BTC. Since the USDD 2.0 upgrade, collateral sits in TRX and USDT vaults, with Peg Stability Module swaps against USDT and USDC.

How does USDD maintain its dollar peg?

Over-collateralized vaults and peg-arbitrage maintain USDD's dollar peg. In the USDD 2.0 architecture, users mint USDD by depositing TRX or USDT collateral into vaults, and redeem USDD through the Peg Stability Module at peg against USDT or USDC. Liquidation mechanisms close under-collateralized vaults, keeping total collateral above the value of outstanding USDD. The system mirrors MakerDAO's vault design rather than a purely algorithmic model.

Has USDD ever depegged from the dollar?

Yes. USDD traded as low as about $0.97 during the June 2022 depeg, on Curve and Binance. Further depeg episodes were noted in 2024. This documented history differentiates USDD's risk profile from fiat-backed stablecoins. The June 2022 episode prompted the TRON DAO Reserve to reposition USDD as an over-collateralized stablecoin, replacing the initial semi-algorithmic design — a direct response to the collateral-quality dispute.

What is USDD 2.0 and the USDDOLD migration?

USDD 2.0 is the current version of the stablecoin, launched on Tron in January 2025 and deployed on Ethereum on September 8, 2025. The upgrade replaced the legacy contract with a Maker-style vault system and upgraded community governance. The legacy token was renamed USDDOLD and retains a residual supply of roughly 7.1 million tokens. USDDOLD remains convertible to new USDD through the official migration portal with no deadline and gas-only cost. bitUSDD and oneUSDD are custody wrappers, not separate tokens.

Does USDD have a maximum supply?

No — USDD has no maximum supply; the token supply is uncapped. New USDD is minted when users deposit collateral and burned when users redeem, so supply expands and contracts with demand rather than following an emission schedule. Per DropsTab data, total supply stood at approximately 1.51 billion USDD as of September 2026, spread across Tron, Ethereum, BNB Chain, Arbitrum, Optimism, and Near deployments.

Is USDD subject to vesting unlocks or investor allocations?

No. USDD has no vesting schedule, team allocation, or investor unlock calendar. USDD had no token-sale fundraising — the TRON DAO Reserve issues and manages the stablecoin, funded by the TRON ecosystem rather than external investors. Because supply changes come from collateralized minting and redemption, USDD carries no unlock-driven sell pressure. The relevant risk for USDD holders is collateral quality, not insider allocation.

Can you stake USDD?

Yes — USDD staking is available in the USDD 2.0 ecosystem. The upgrade launched with a headline 20% APY promotional rate, and a ~12% fixed yield is offered via a TRON DAO Reserve lockup. A Savings USDD (sUSDD) wrapper also circulates, with roughly 190 million tokens outstanding.

Where can you buy and trade USDD?

Per DropsTab data, USDD trades on multiple centralized spot venues and multiple decentralized exchanges. Centralized listings include HTX, Gate, KuCoin, MEXC, Poloniex, BingX, and Kraken — Kraken carries the main fiat pairs (USDD/USD and USDD/EUR). On-chain, USDD trades on Uniswap v3 on Ethereum and Arbitrum, plus SunSwap on Tron. Liquidity concentrates in USDT pairs on Tron-ecosystem exchanges, so direct fiat liquidity is thin outside Kraken. No derivatives markets track USDD.