Circle will launch Arc, a USDC-native Layer 1 blockchain, on September 16, one day after the U.S. Senate holds a cloture vote on the CLARITY Act, the most consequential piece of crypto legislation since the GENIUS Act. Eleven founding validators include BlackRock, DTCC, Visa, Mastercard, ICE, Standard Chartered, and Galaxy, making Arc the most institutionally backed genesis cohort in blockchain history.
Circle CEO Jeremy Allaire called Arc “a bigger opportunity than USDC” during the company’s Q2 2026 earnings call, describing it as “the birth of a new operating system layer for economic activity in the world.” The language signals that Circle views stablecoin issuance as just the starting point, not the endgame.
Why a stablecoin company needs its own chain
The short answer is margins. Circle made $701 million in revenue last quarter, but most of that came from reserve income on the Treasury bills backing USDC. When interest rates drop, that revenue drops with it. A blockchain generates transaction fees regardless of the rate environment.
The longer answer involves a structural problem that has plagued USDC since its inception. Circle issues the dollar. Ethereum, Solana, Base, and a dozen other networks move it. Every time a USDC transaction settles on Ethereum, Circle captures zero value from that settlement. The gas fee goes to ETH stakers. The MEV goes to searchers. Circle gets nothing except the float on the underlying reserves.
Arc changes that equation. On Arc, USDC is the native gas token. Every transaction fee is denominated in dollars, not in a volatile network asset. The ARC token, which Circle holds 25% of at genesis, accrues value through validator rewards and token burns. Circle goes from being just the issuer to owning the infrastructure itself.
The validator list
When Circle announced its founding validator cohort on August 5, the reaction split along ideological lines. Crypto-native builders saw a consortium chain dressed in decentralization language. Traditional finance executives saw the most credible launch network since Visa joined Solana.
The eleven founding validators: BlackRock, DTCC, Galaxy, Global Payments, ICE, Mastercard, MoneyGram, SBI Group, Standard Chartered, Sumitomo Corporation, and Visa.
DTCC clears and settles the vast majority of U.S. securities transactions. ICE owns the New York Stock Exchange. BlackRock manages over $11 trillion in assets. These are not speculative crypto funds looking for yield. They are the institutions that run the traditional financial system, and they are now running nodes on a blockchain built by a stablecoin company.
Starting in the second half of 2027, DTCC plans to tokenize DTC-custodied assets on Arc, covering tokenized repo, collateral mobility, and corporate actions. BlackRock plans to deploy its BUIDL fund on Arc, the tokenized Treasury product that has already crossed $2.87 billion in assets.
How Arc actually works
Arc is not a rebadged Ethereum fork. The consensus layer runs Malachite, built by the team that joined Circle from Informal Systems, the company behind much of the original Tendermint and IBC work in the Cosmos ecosystem. Malachite delivers deterministic finality in under 500 milliseconds. A transaction on Arc is final when the block closes, with no probabilistic waiting period.
The execution layer is built on Reth, the Rust-based Ethereum client. This gives developers a familiar EVM-compatible environment. Solidity, Foundry, Hardhat, and existing Ethereum tooling all work on Arc out of the box. Developers can port contracts without rewriting them.
The fee model takes EIP-1559 as a starting point but replaces block-level fee adjustments with a weighted moving average of network demand. Fees stay low and predictable in dollar terms because they are literally denominated in dollars. No more guessing whether a transaction will cost $0.50 or $50 based on network congestion.
Arc also ships with a privacy layer that can hide transfer amounts when needed, aimed at institutional users who cannot broadcast their trading activity on a public ledger.
The $3 billion bet
In May, Circle closed a $222 million presale for the ARC token at a $3 billion fully diluted valuation. The round placed 740 million tokens at $0.30 each, roughly 7.4% of the 10 billion initial supply.
The investor list includes a16z crypto, BlackRock, Apollo Funds, ARK Invest, General Catalyst, Haun Ventures, Intercontinental Exchange, IDG Capital, Janus Henderson, Marshall Wace, SBI Group, and Standard Chartered Ventures.
Token allocation breaks into three buckets. About 60% goes to the ecosystem for developers, grants, and network growth. Circle retains 25% for development, staking, and governance. The remaining 15% sits in a long-term reserve for market stability.
The CLARITY Act factor
The September 15 cloture vote on the CLARITY Act is not a coincidence that Circle is ignoring. The bill, which passed the House in July 2025 and cleared the Senate Banking Committee 15-9 in May, represents the most comprehensive attempt to regulate digital assets in U.S. history.
If the CLARITY Act passes, Arc launches into a market where the rules are written and Circle’s compliance-first approach becomes a competitive moat. If the bill fails to reach 60 votes, the regulatory picture stays murky through at least 2027.
Circle has positioned Arc to work in either scenario. A chain validated by DTCC, BlackRock, and Visa is a chain that any compliance department can approve without losing sleep.
The deeper question is whether this model can coexist with permissionless networks or whether it inevitably replaces them. If DTCC settles securities on Arc and BlackRock deploys BUIDL there, does institutional money ever need to touch Ethereum again? The answer to that question may shape the next decade of crypto infrastructure.
discussion