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USD-denominated token products comparison — USDT / USDC / PYUSD / RLUSD / USD1 / FDUSD / USDS / USDe / M / USDB

ConfidenceConfirmedUpdated2026-07-30Review by2026-10-30Sources13Machine-translatedOriginal (JA)

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This entry sits under fintech index and compares ten often-grouped USD-denominated tokens using only dimensions that their own terms, transparency pages, or protocol documentation can support. It complements the issuer pages for USDT, USDC, PYUSD, RLUSD, USD1, FDUSD, USDS, M, and USDB.

[!info] TL;DR These ten names are not ten interchangeable “issuers.” USDT, USDC, PYUSD, RLUSD, USD1, FDUSD, and USDB are centrally administered fiat-backed products; USDS is issued through a governed collateral protocol; USDe is a crypto-backed, delta-hedged synthetic dollar; and M is minted by approved minters against verified off-chain collateral. Compare their legal counterparty, reserve or collateral mechanism, direct-redemption boundary, and reporting cadence before comparing market size. As of 2026-07-30, the GENIUS Act is enacted but not yet effective, and the OCC implementation rule remains proposed. There is therefore no official product-by-product “pass/fail” list.

Comparison boundary

The word stablecoin hides several different claims. A fiat-backed token generally gives an eligible direct customer a contractual redemption path against an administering entity. A protocol token relies on smart-contract rules, collateral, governance, validators, hedges, or market liquidity. Secondary-market holders may not have the same rights as an issuer’s approved mint-and-redeem customers. This page does not turn an issuer’s marketing statement into a credit rating, and it does not treat an attestation as an audit of the issuer’s entire business.

Matrix A · Product form and accountable party

Product Product form supported by primary documentation Issuer, administrator, or control point
USDT Fiat-denominated Tether Token backed by the issuer’s disclosed reserve portfolio Tether International, S.A. de C.V.; its reserve report states that it became the sole issuer of fiat-denominated Tether Tokens after the 2025 relocation to El Salvador
USDC Fiat-backed digital dollar, redeemable 1:1 by eligible Circle Mint customers Circle, through the issuing affiliates identified in its terms and licensing disclosures
PYUSD Payment stablecoin bearing the PayPal brand Paxos Trust Company N.A. is the issuer; PayPal is the branded product partner
RLUSD Fiat-backed payment token on supported ledgers Standard Custody & Trust Company, LLC is the issuer
USD1 Fiat-backed token branded by World Liberty Financial BitGo issues and redeems USD1; World Liberty Financial owns the brand and provides specified services
FDUSD Fiat-backed token intended for eligible non-U.S. users FD121 (BVI) Limited is the issuer; First Digital Trust Limited provides reserve custody
USDS Native stablecoin of Sky Protocol, backed by protocol collateral Issuance and parameters are controlled through Sky Protocol smart contracts and SKY governance, not a conventional reserve-issuer contract
USDe Synthetic dollar backed by crypto assets, liquid stablecoins, and corresponding hedge positions Ethena protocol; direct mint and redemption are restricted to approved counterparties
M Protocol token minted against verified off-chain collateral Approved Minters propose issuance; Validators attest collateral; the MinterGateway and M0 Governance enforce protocol limits
USDB Bridge’s treasury-backed stablecoin, offered through Bridge APIs Bridge states that it issues and manages USDB; Stripe ownership does not make Stripe the named token issuer in the product documentation

Source: Tether Q1 2026 reserve report announcement; Circle transparency; Paxos PYUSD transparency; RLUSD terms; World Liberty Financial FAQ; FDUSD terms; Sky USDS explainer; Ethena documentation; M0 minting documentation; Bridge USDB documentation.

Matrix B · Backing, redemption, and public verification

Product Backing or collateral disclosed by the product Direct redemption boundary Public verification
USDT A reserve portfolio reported by Tether; the Q1 2026 report describes Treasury-heavy, short-duration liquid holdings while the underlying report also separates other reserve categories Redemption is governed by Tether’s customer terms and eligibility rules Quarterly reserve report and independent assurance opinion
USDC Cash, bank deposits, short-dated U.S. Treasuries, and overnight Treasury repo; a majority may be held in the Circle Reserve Fund Circle Mint redemption is for eligible institutional customers; Circle separately states its MiCA redemption commitment Weekly holdings and mint/burn disclosure plus monthly third-party assurance
PYUSD Reserves reported by Paxos for the Paxos-issued token Eligible Paxos customers can mint and redeem under Paxos terms; secondary-market access is distinct Monthly management reserve report and monthly independent attestation; KPMG has issued reports since 2025-02-28
RLUSD Segregated reserve of cash and highly liquid short-term assets; terms permit short U.S. Treasury bills, overnight Treasury repo, government money-market funds, and deposits Direct purchase and redemption require a Ripple customer relationship governed by the customer agreement Monthly reserve report and independent CPA attestation
USD1 Cash, short-term U.S. Treasuries, government money-market funds, deposits, and other permitted cash equivalents held or maintained by BitGo Eligible BitGo customers may redeem directly; other holders rely on supported intermediaries or secondary markets Monthly reserve disclosure and independent examination of management’s assertion
FDUSD USD and USD-denominated assets; current transparency disclosure identifies cash, bank deposits, Treasury bills, and reverse repo Direct minting and redemption require an eligible FD121 account; U.S. persons are excluded by the terms Monthly reserve report and independent attestation
USDS Diversified protocol collateral with excess collateral value; USDS itself does not accrue the Sky Savings Rate Protocol conversion and collateral mechanisms, not a claim under a bank or trust-company redemption agreement On-chain collateral and governance data; sUSDS is a separate value-accruing token
USDe Crypto assets and liquid stablecoins combined with short derivatives positions intended to maintain delta neutrality Direct mint and redemption are for approved KYC/KYB market-making counterparties; others acquire or dispose through markets On-chain backing data and Ethena’s disclosures; hedge and off-exchange custody create risks different from fiat reserves
M Off-chain collateral, typically eligible real-world assets held through structures such as SPVs, whose value is reported and validated on-chain Mint and burn are governed by MinterGateway rules; this is not retail redemption against a single reserve issuer Validator-signed collateral updates plus on-chain debt, mint, and burn state
USDB The current USDB page describes an off-the-shelf closed-loop stablecoin and says Bridge manages reserves, liquidity, and compliance; it does not specify a USDB reserve allocation The product is intended for internal movement of money in a closed-loop ecosystem; the page does not establish an open-loop public redemption right The cited USDB page establishes no public USDB-specific real-time supply or reserve endpoint and no public attestation report. Bridge’s separate generic reporting page describes API-key-protected xUSD endpoints, monthly customer reports, and optional-fee quarterly attestations for Bridge-issued stablecoins

Source: Tether Q1 2026 disclosure; Circle transparency; Paxos PYUSD transparency; RLUSD transparency; BitGo USD1 attestations; FDUSD transparency; Sky USDS explainer; Ethena USDe overview; M0 minting and burning; Bridge USDB documentation; Bridge reporting and transparency documentation.

Matrix C · Legal and access boundaries

Product Primary documented boundary What should not be inferred
USDT Tether International reports an El Salvador stablecoin-issuer and digital-asset-service-provider authorization An offshore authorization is not a U.S. permitted-payment-stablecoin determination
USDC Circle publishes the licenses and issuing affiliates applicable to its products and jurisdictions “Many licenses” is not the same proposition as final approval under a federal regime that is not yet effective
PYUSD Issued by a U.S. national trust bank and subject to the issuer’s terms and prudential supervision PayPal branding does not make PayPal the legal reserve issuer
RLUSD Issued by a NYDFS-supervised limited-purpose trust company A state trust charter is not evidence that every future federal implementation condition has already been adjudicated
USD1 BitGo is the issuer under the USD1 terms; the responsible BitGo entity and regulatory basis must be read from the current terms and attestations Political affiliation or branding does not prove either regulatory approval or disqualification
FDUSD Issuer is a BVI company; terms exclude U.S. persons and U.S.-person mint/redemption activity First Digital Trust’s Hong Kong custody status does not turn FD121 (BVI) Limited into a Hong Kong-authorized stablecoin issuer
USDS A governed protocol with separate USDS and sUSDS tokens “Decentralized” does not itself establish exemption from any statute
USDe A synthetic-dollar protocol with restricted direct mint/redemption Ethena’s product classification is not a regulator’s binding legal classification
M A protocol separates Minters, Validators, governance, and the M token Protocol modularity does not create one blanket license for every minter or front-end
USDB Bridge documentation describes API-based issuance, reserves, and restricted distribution Stripe’s acquisition of Bridge does not by itself establish a specific federal stablecoin authorization

Source: Tether reserve-report background; Circle USDC disclosures; Paxos PYUSD transparency; RLUSD transparency; BitGo USD1 terms; FDUSD terms; Sky USDS explainer; Ethena documentation; M0 minting documentation; Bridge developer agreement.

The GENIUS Act is Public Law 119-27, approved on 2025-07-18. The relevant reserve, redemption, disclosure, supervision, and permitted-issuer requirements are primarily in sections 3–8. The issuer-interest restriction is section 4(a)(11); there is no basis for calling these products “§501 pass” or “§501 fail.”

Section 20 makes the Act effective on the earlier of:

  1. 18 months after enactment, which is 2027-01-18; or
  2. 120 days after the primary federal payment-stablecoin regulators issue final implementing regulations.

As of 2026-07-30, the OCC’s broad implementation package and the Treasury/FinCEN/OFAC packages visible in the public record are proposals, not final product approvals. Section 18 creates a process for foreign comparable-regime determinations and registration; it does not automatically recognize every foreign token. Section 3 also gives U.S. digital-asset service providers a separate three-year transition before the statutory offer-or-sale restriction applies.

Source: Public Law 119-27, sections 3, 4, 18, and 20; OCC 2026-02-25 proposed-rule notice; Treasury 2026-04-08 proposed-rule notice.

Matrix D · Evidence-safe comparison checklist

Question Evidence required Common error avoided
Who owes the redemption obligation? Current token terms naming the legal counterparty Treating a brand, distributor, parent, or custodian as the issuer
What backs the token? Dated reserve report or protocol collateral specification Copying a percentage from an old report into a timeless matrix
Who can redeem directly? Eligibility and customer terms Assuming every wallet holder has an unconditional $1 claim
What type of assurance exists? Report title, scope, measurement date, and accounting firm Ranking an attestation as if it were a full-company financial-statement audit
Is holder yield part of the token? Token terms and separate-product documentation Conflating USDS with sUSDS, or USDe with sUSDe
Is a legal conclusion final? Effective statute, final rule, regulator order, or adjudication Turning an issuer’s “ready” claim into a government “pass”
Is market size comparable? Same timestamp, same supply definition, and treatment of bridged or inactive tokens Mixing live supply, protocol TVL, reserve assets, and branded-token balances

Source: Public Law 119-27; Paxos description of management reports versus independent attestations; Bridge generic reporting and transparency documentation.

Reading the matrix

  • Do not rank products with a single “compliance” score. A legal counterparty, reserve instrument, holder eligibility rule, and protocol risk are different variables.
  • Do not copy live supply, chain share, APY, or reserve percentages without a measurement date. Those values can change while the product terms remain the same.
  • Do not assume that a custodian is the issuer. FDUSD and USD1 make the distinction especially visible; PYUSD also separates PayPal’s brand from Paxos’s issuance role.
  • Do not assume that a separate savings token pays interest on the base stablecoin. Sky states that USDS itself does not earn yield, while sUSDS is a separate value-accruing token. Ethena likewise distinguishes USDe from sUSDe.
  • For U.S. legal analysis, cite the enacted section and the current rulemaking stage. Product marketing such as “GENIUS-ready” is not a regulator-issued authorization.

Sources

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