Snapshot 2026-03-31Published 2026-04-15Lag 15dSource Secondary SourceVerified 2026-08-03

USDC Reserve Attestation

Circle Internet Group, Inc. — 2026-03-31

Engagement Details

Period Type: Monthly
Engagement Type: Examination
Standard: AT-C 205
Opinion: Unmodified
Practitioner: Deloitte & Touche LLP
Assertion Party: Management of Circle Internet Group, Inc.

Reserve Summary

Total Reserves: $77,500,000,000
Circulating Supply: $77,215,000,000
Coverage Ratio: 100.37%

Composition

Category	Amount (USD)	%
Government Money Market Funds	$65,000,000,000	83.90%
Cash at Insured Depository	$12,500,000,000	16.10%

Custodians

BNY Mellon
BlackRock

Scope Notes

Reserves primarily held in Circle Reserve Fund (USDXX), a SEC-registered 2a-7 government money market fund managed by BlackRock. Reserve and circulating supply figures sourced from public reporting; verify against primary PDF.

GENIUS Act Disclosure Checklist

Factual observations only. See methodology.

✓Monthly disclosure published
✓Examination-level engagement
✓Practitioner PCAOB-registered
✓Executive certification present
✓Composition by category disclosed

Source

Primary source PDF ↗

Source quality: Secondary Source

How to Cite

Reserve Attestation Registry. "USDC Reserve Attestation — 2026-03-31." https://grantstell.com/attestations/circle-usdc-2026-03 (retrieved 2026-08-03).