---
id: 8460
title: "Circle’s Arc Mainnet: From a USD 74 Billion USDC Supply to Native Settlement"
source_domain: certik.com
source_url: "https://www.certik.com/blog/circle-arc-mainnet-usdc-native-settlement"
published_at: "2026-09-16T16:00:00Z"
tags: ["web3", "defi", "blockchain", "stablecoin", "arc", "circle-arc", "arc-mainnet", "stablecoin-settlement", "usdc", "institutional-validators", "circle", "mainnet"]
phying_url: "https://phying.com/item/8460"
lang: en
---

# Circle’s Arc Mainnet: From a USD 74 Billion USDC Supply to Native Settlement

## Summary

Circle's Arc mainnet opens 16 September 2026 with USDC as gas and settlement asset: EVM compatibility, a permissioned institutional validator set, and a $74.22B USDC supply as launch context.

## Intelligence Metadata

- **Sources:** certik.com
- **Published:** 2026-09-16T16:00:00Z
- **Original:** https://www.certik.com/blog/circle-arc-mainnet-usdc-native-settlement
- **Phying News:** https://phying.com/item/8460