Decentralized exchange Extended has completed its migration to Arc, Circle’s EVM-compatible Layer 1 blockchain, transferring approximately $120 million in total value locked (TVL). The move, effective October 22, 2026, at 13:00 UTC, shifts Extended’s settlement infrastructure from Starknet to Arc.
Open positions and orders were transferred intact during the migration. While deposits and withdrawals experienced a brief pause, they have since been restored. Extended now accepts native USDC as its primary collateral and cirBTC, a Circle-issued token backed 1:1 by Bitcoin, as its Bitcoin collateral asset.
Unsupported Assets and User Actions
As part of the transition, Extended has discontinued support for USDT and wBTC. Users holding these assets were required to act by October 21, 2026, either by withdrawing them or converting them to USDC or cirBTC. A 0.50% premium was offered for conversions, suggesting Extended’s intent for a swift collateral consolidation. Holders of ETH saw their balances automatically converted to wETH.
Arc Blockchain and Partnership Context
Arc blockchain, which launched its mainnet on September 16, 2026, offers sub-second deterministic finality, with gas fees paid in USDC. Its validator lineup includes prominent institutions such as BlackRock, DTCC, ICE, Visa, and Mastercard. This migration also grants Extended access to Circle’s Cross-Chain Transfer Protocol (CCTP), facilitating native USDC transfers across blockchains.
The migration is characterized as the first step in a broader partnership between Extended and Circle. Extended has reported over $200 billion in lifetime trading volume across various asset classes.
Future Outlook
Key metrics to monitor include the growth of TVL on Arc beyond the initial $120 million, the adoption of cirBTC as Bitcoin collateral, and the specific outcomes of the Extended-Circle partnership. The operational success of this migration and the new collateral structure are central to Extended’s future on the Arc blockchain.
Why This Matters
The materials describe a narrow update: Extended, a decentralized exchange, completed its migration to Arc, Circle’s EVM-compatible Layer 1 blockchain. Whether TVL grows beyond approximately $120 million.
Broader Context
Source materials place the factual news in this context: Extended, a decentralized exchange built around perpetual contracts, has fully moved to Arc.
