Short executive summary
RLUSD and USD1 are useful challenger-stablecoin monitoring cases, but supply growth is not reserve-quality proof.
Public dashboards show RLUSD and USD1 as meaningful challenger stablecoins by supply / market-cap visibility, with RLUSD showing stronger 30-day growth in the retrieved DefiLlama snapshot and USD1 showing larger absolute dashboard size.
Supply growth is a market-distribution signal. It is not reserve-quality proof, not a completed-audit signal, not a redemption-resilience conclusion and not treasury-suitability evidence.
RLUSD has issuer and transparency-page evidence from Ripple, plus monthly reserve reports / attestation-style reporting by an independent accounting firm.
USD1 has official docs describing backing, BitGo issuance / custody / redemption workflow, monthly attestation reports, and a live proof-of-reserves dashboard intended to complement formal reports.
Attestation, transparency page, live proof-of-reserves dashboard, oracle data and completed full audit are separate evidence layers.
This brief does not rank RLUSD or USD1, does not recommend using either token, and does not make issuer-safety, reserve-safety, redemption, legal, tax, accounting or compliance conclusions.
Challenger supply-growth snapshot
At retrieval on 2026-06-03, DefiLlama’s RLUSD page showed RLUSD at $1.807B market cap and 1.807B total circulating, while CoinGecko Stablecoins showed $1.816B market cap. DefiLlama showed RLUSD at +1.51% 7d and +16.20% 30d. CoinGecko displayed RLUSD at row 48 on its stablecoins category page. DefiLlama’s RLUSD chain split showed Ethereum 1.076B and XRPL 730.71M; Ripple’s own product page says RLUSD is natively issued on XRP Ledger and Ethereum.
USD1 was larger by dashboard size in the same retrieval. DefiLlama’s USD1 page showed $4.726B market cap and 4.734B total circulating. CoinGecko showed $4.669B market cap and displayed USD1 at row 25. DefiLlama showed -1.50% 7d and +3.85% 30d. The DefiLlama chain split showed USD1 across Ethereum, BSC, Solana and several smaller chains. The latest directly retrievable official March 2026 report showed USD1 minted / redeemed on Ethereum, BNB Smart Chain, Tron, Aptos and Solana during the report period.
Dashboard totals also differed: DefiLlama Stablecoins showed total stablecoin market cap at $319.47B, while CoinGecko showed $314.52B on the same retrieval date. That discrepancy is a methodology / coverage caveat, not a safety conclusion.
Important caveat. These figures should be read as dashboard-observed market visibility at a stated retrieval date. They do not prove issuer quality, reserve quality, legal status, redemption resilience, chain safety, or treasury suitability.
RLUSD reserve-transparency stack
Ripple’s product page describes RLUSD as a U.S. dollar-backed stablecoin, with each token supported one-to-one by cash deposits, U.S. Treasuries and issuer-stated cash equivalents. Ripple’s RLUSD transparency page says RLUSD is backed by U.S. dollars and other cash equivalents, with reserves held in segregated accounts, and identifies Standard Custody as issuer, chartered and supervised by NYDFS as a limited purpose trust company.
The transparency page also says Ripple provides monthly reserve reports conducted by an independent third-party accounting firm, with attestations by an independent U.S.-licensed CPA, and reports available monthly no more than 30 days after month end. The live transparency page showed $1,731.0M total circulating RLUSD and $1,833.0M reserve funds as of 2026-05-28. That is an issuer transparency snapshot, not a permanent current-state claim.
The latest linked formal report at retrieval was the RLUSD April 2026 reserve report, dated 2026-05-28. It states that, as of 2026-04-24 and 2026-04-30, reserve market value was at least equal to outstanding units under the stated attestation framework. On 2026-04-30, outstanding units were 1,443,684,832 and reserve market value was $1,546,747,642. The report’s reserve criteria include U.S. Treasury bills with three months or less to maturity, reverse repo fully collateralized by U.S. Treasuries, government money-market funds and deposit accounts under NYDFS conditions.
What this proves. RLUSD has issuer-stated backing language, a live transparency page, and a formal monthly reporting / CPA-attestation workflow.
What it does not prove. It does not prove completed full audit status, future reserve adequacy, stress redemption performance, legal conclusions, or treasury suitability.
USD1 reserve-transparency stack
USD1 official docs describe USD1 as the flagship stablecoin of World Liberty Financial and as redeemable 1:1 for the U.S. dollar. The docs say USD1 is backed by cash, U.S. government money market funds and other issuer-stated cash equivalents, and that reserve assets backing USD1 are held or maintained by BitGo. The docs also say USD1 is issued and minted by BitGo, while World Liberty Financial does not issue or custody USD1 directly.
The redemption path is not identical for every holder. The source pack says access to minting and redemption is subject to issuer onboarding, verification and approval; eligible BitGo customers may redeem directly, while other holders may use supporting exchanges, platforms or custodians subject to their terms and eligibility.
USD1 also has a formal monthly attestation layer. USD1 attestation reports docs say reserve attestation reports are published monthly, and BitGo says an independent accounting firm examines management’s assertion under AICPA criteria. The latest directly retrievable formal report in the source pack was the USD1 March 2026 reserve attestation report. It says Crowe LLP examined BitGo Bank & Trust, N.A.’s assertion. As of 2026-03-31, USD1 redeemable tokens outstanding were 4,392,802,478 and redemption assets were $4,392,828,274. The report says redemption assets may include cash, cash equivalents, short-term U.S. Treasuries, reverse repo agreements fully collateralized by U.S. Treasuries, and government money market funds.
USD1 also has Proof of Reserves docs describing a live transparency dashboard intended to complement monthly attestations by showing reserve and supply data sourced from public blockchains and an on-chain Chainlink oracle. The docs include an important disclaimer: data accuracy is not guaranteed and is provided for informational purposes only; official reserve reports remain the formal source. The USD1 live PoR dashboard existed in the retrieved source set, but current numeric reserve / collateralization values were not safely extracted in text-rendered retrieval.
Attestation / PoR / audit distinction
- Reserve disclosure is issuer-published information about what backs the token and who manages reserves.
- Transparency page is a useful monitoring layer with selected issuer figures and dates.
- Monthly attestation or CPA report is a point-in-time third-party examination of management’s reserve assertion under defined criteria.
- Proof-of-reserves dashboard can add a live monitoring surface between reports, especially when paired with oracle data. It is not a substitute for formal reserve reports, attestations, or completed audit evidence.
- Oracle feed can support a dashboard model, but oracle / dashboard data should not be treated as full reserve-safety proof.
- Completed full audit is a separate evidence layer and should only be claimed when a reviewed official source explicitly supports it.
What remains unresolved in the reviewed official sources: the reviewed official sources did not identify completed full audit evidence for either RLUSD or USD1.
Market share vs reserve quality
| Signal | What it can indicate | What it cannot prove | Monitoring question |
|---|---|---|---|
| Supply / market-cap growth | Distribution, issuance growth and market visibility | Reserve quality, issuer quality, legal status, redemption resilience, trust or treasury suitability | What is the date gap between market snapshot and latest formal reserve evidence? |
| Dashboard rank | Relative category-page prominence | Safety ranking or issuer-quality ranking | Is this a visibility signal or reserve-quality signal? |
| Chain distribution | Where supply is distributed | Chain safety, bridge safety, liquidity safety or redemption performance | Which chain footprints matter operationally? |
| Reserve disclosure | What issuer / formal report says may back the token | Exact current portfolio weights unless report shows them | Do we have dated reserve categories? |
| Attestation cadence | Whether recurring third-party reporting exists | Real-time proof or completed audit | How stale is the latest formal report? |
| PoR dashboard | Extra monitoring surface between reports | Full reserve-quality proof, redemption resilience or completed audit | Can we separate live data from formal reports? |
Treasury / risk monitoring questions
- What exactly backs the token according to issuer docs and latest formal report?
- What is the latest reserve report / attestation date?
- Is the reserve evidence formal, live, dashboard-based or issuer-marketing language?
- What is independently verified, by whom, and under what criteria?
- What is the gap between live dashboard supply and latest formal reserve report?
- What chain-distribution or operational exposure should be tracked?
- What would count as completed audit evidence?
- What should remain outside public-source conclusions?
Decision-support checklist
| Signal | Source | What it can indicate | What it cannot prove | Monitoring question | Refresh requirement |
|---|---|---|---|---|---|
| RLUSD 30d growth | DefiLlama | Supply growth / market visibility | Reserve quality, issuer quality or safety | Has formal reserve evidence kept pace with supply? | Refresh before publication |
| USD1 market cap | DefiLlama / CoinGecko | Large dashboard presence | Trust, legal status, reserve adequacy or redemption resilience | Which dashboard total is being used? | Refresh before publication |
| RLUSD transparency page | Ripple | Issuer snapshot and monthly-report cadence | Completed audit or stress resilience | What is the latest “as of” date? | Refresh before publication |
| USD1 attestation page | BitGo / WLFI | Monthly formal-report workflow | Current real-time reserve state | Is a post-March report now available? | Refresh before publication |
| USD1 PoR dashboard | USD1 docs / dashboard | Live monitoring layer | Formal report, full reserve safety or completed audit | Are live values visible and date-tagged? | Refresh if cited |
| Completed audit evidence | Official sources | Audit status only if directly sourced | Any completed-audit conclusion without direct evidence | Has a completed audit report appeared? | Keep as open unless confirmed |
What this does NOT prove
This brief is not investment advice, trading advice, legal advice, tax advice, accounting advice or compliance advice. It is not a recommendation to use RLUSD or USD1. It is not a stablecoin ranking. It does not prove RLUSD is safe or unsafe. It does not prove USD1 is safe or unsafe. It does not prove supply growth means trust. It does not prove market cap means reserve quality. It does not prove PoR proves full reserve safety. It does not prove attestation equals completed audit. It does not prove redemption resilience under stress. It does not prove Treasury Desk demand, WTP, PMF, traction, revenue or adoption.
Which challenger stablecoin reserve stack should be reviewed next from a treasury-monitoring perspective?
Treasury Desk can support read-only reserve-transparency monitoring: dashboard growth, issuer disclosures, formal reports, PoR surfaces, attestation cadence, chain distribution and open evidence gaps. This is monitoring and decision-support, not asset guidance, issuer ranking, reserve-safety verdict, redemption guidance or suitability analysis.
Caveat
This brief is based on public-source reserve-transparency monitoring and is intended for educational discussion and treasury / governance decision-support. It is not investment advice, trading advice, asset guidance, legal advice, tax advice, accounting advice, compliance advice, a stablecoin ranking, an issuer-safety verdict, a reserve-safety verdict, a redemption guarantee, or a suitability conclusion. Supply growth, market-cap visibility, chain distribution, issuer pages, transparency pages, attestations, oracle data and proof-of-reserves dashboards should be read as separate evidence layers. None should be treated as proof of completed full audit, reserve quality, trust, treasury suitability, redemption resilience under stress or future outcomes unless a reviewed official source explicitly supports that claim.
Source references
Market dashboards
RLUSD sources
- Ripple USD product page
- RLUSD transparency page
- RLUSD April 2026 reserve report
- RLUSD March 2026 reserve report