# What Is Robinhood Chain? Arcus's Home Network Explained > Robinhood Chain is an Arbitrum-based Ethereum Layer 2 (chain ID 4663) with ETH gas. How it works, how to bridge, which apps run on it, and how Arcus fits in. *Source: https://arcusguide.com/ecosystem/what-is-robinhood-chain* Robinhood Chain is the blockchain Robinhood built for trading tokenized stocks and other financial assets onchain. Technically it is an Ethereum Layer 2 built on Arbitrum technology, with chain ID 4663 and ETH as its gas token. Its public mainnet launched on July 1, 2026, and it is the only network Arcus runs on. If you trade on Arcus, every Stock Token you hold and every dollar of perps collateral lives on Robinhood Chain. This guide explains what the chain is, the network details you need for a wallet, how to bridge in and out, what else runs on it, and the incidents and scams worth knowing about. It sticks to what Robinhood's docs and public data show and makes no claims about how regulators view the chain. ![Diagram of Robinhood Chain: apps such as Arcus, Lighter, Uniswap and Morpho on top; the Robinhood Chain Layer 2 with chain ID 4663, ETH gas and a first-come first-served sequencer in the middle; Ethereum Layer 1 underneath; bridges listed on the side](/images/ecosystem/what-is-robinhood-chain/robinhood-chain-stack.svg) > **Key takeaway:** Robinhood Chain is an Arbitrum-stack Layer 2 on Ethereum, chain ID 4663, gas paid in ETH, explorer at robinhoodchain.blockscout.com. Arcus is one of several apps on it. Robinhood built the chain; Arcus is an independent exchange that Robinhood Crypto has invested in. ## What Robinhood Chain is Robinhood's [documentation](https://docs.robinhood.com/chain) describes it as "a permissionless, Ethereum-compatible Layer-2 blockchain built to support a new era of onchain financial infrastructure." A few properties from those docs matter to traders: - It runs on what Robinhood calls Arbitrum Dedicated Blockchains, the Arbitrum chain stack many people still know as Orbit. Transactions execute on the Layer 2 and get posted to Ethereum, using Ethereum blobs for data availability. - Gas is paid in ETH. There is no separate gas token, so keep a little ETH on Robinhood Chain for any onchain action you pay for yourself. - The sequencer orders transactions strictly by arrival time. Paying a higher fee does not let anyone jump the queue. - It is EVM compatible: Solidity contracts, standard wallets and tools like Hardhat, Foundry, ethers.js and viem work without changes. - ERC-4337 account abstraction is built in, which is how apps sponsor gas or offer smart wallets with session keys. - Robinhood says the chain is optimized for tokenized equities, ETFs and other financial instruments that people can self-custody and trade 24/7. Arcus's Help Center sums it up as "an EVM L2 that inherits Ethereum's security." ![Robinhood Chain documentation page About Robinhood Chain, describing a permissionless, Ethereum-compatible Layer-2 blockchain](/images/ecosystem/what-is-robinhood-chain/robinhood-chain-docs-about.webp) *Source: [Robinhood Chain docs](https://docs.robinhood.com/chain), used under fair use for educational purposes* ### When it launched Robinhood announced the public mainnet at its "The World is Flat" keynote in London on July 1, 2026 ([Robinhood newsroom](https://robinhood.com/us/en/newsroom/robinhood-accelerates-global-expansion-robinhood-chain-mainnet-stock-tokens-agentic-trading/)). The post describes the chain as "Built using the Arbitrum Platform," names Uniswap and Pleiades as day-one liquidity partners, and lists Alchemy, BitGo and Chainlink among the infrastructure integrations. Arcus launched spot and perps beta the same day. --- ## Network details for your wallet | Setting | Mainnet | Testnet | |---|---|---| | Chain ID | 4663 | 46630 | | Gas token | ETH | ETH | | Block explorer | [robinhoodchain.blockscout.com](https://robinhoodchain.blockscout.com) | explorer.testnet.chain.robinhood.com | | Public RPC | https://rpc.mainnet.chain.robinhood.com | https://rpc.testnet.chain.robinhood.com | Source: [Connecting to Robinhood Chain](https://docs.robinhood.com/chain/connecting). I confirmed the mainnet RPC returns chain ID `0x1237` (4663) on October 2, 2026. Robinhood labels the public endpoints rate-limited and recommends a provider such as Alchemy for production apps. Most wallets, including MetaMask, can add the network from the settings above; Robinhood's docs also have an [add network](https://docs.robinhood.com/chain/add-network-to-wallet) page. ### The explorer The mainnet explorer runs on Blockscout. When I loaded it on October 2, 2026 it showed an average block time of 0.1 seconds, about 8.55 million daily transactions, more than 881 million total transactions, 26.4 million addresses and a gas tracker under $0.01. Those are point-in-time readings from the explorer's own dashboard. ![The Robinhood Chain Blockscout explorer homepage showing latest batches, a 0.1 second average block time, total transactions, total addresses and a gas tracker under one cent](/images/ecosystem/what-is-robinhood-chain/robinhood-chain-blockscout-explorer.webp) *Source: [Robinhood Chain explorer](https://robinhoodchain.blockscout.com), used under fair use for educational purposes* You can paste your Arcus wallet address into the explorer to see Stock Token balances, spot settlements and deposits. Perps trades will not appear one by one, because Arcus matches them off-chain and only commits state roots and settlements to the chain. --- ## Bridging in and out Robinhood's [bridging page](https://docs.robinhood.com/chain/bridging) lists these routes: | Route | Type | Speed | |---|---|---| | Arbitrum canonical bridge | Trustless Ethereum to L2 | Deposit about 10 min; withdrawal about 7 days | | LayerZero OFT / Stargate | Messaging plus token transfer | Minutes | | Chainlink CCIP / Transporter | Messaging plus token transfer | Minutes | | Relay | Intent-based bridge | Seconds | | Across | Intent-based bridge | Seconds | | LiFi / 0x | Swap-and-bridge aggregators | Seconds to minutes | The canonical bridge inherits Ethereum's security but withdrawals take three steps: start on Robinhood Chain, wait out the roughly 7-day challenge period, then claim on Ethereum and pay Ethereum gas. Faster bridges trade that wait for trust in the bridge operator. Robinhood also notes that a bridged ERC-20 has a different contract address on Robinhood Chain than on Ethereum, so check token addresses before you send. If your goal is trading on Arcus, you rarely need any of this. Arcus's deposit flow, powered by Fun, routes crypto from Ethereum, Arbitrum, Base, Solana and Bitcoin, or cash from cards and Apple Pay, into USDG on Robinhood Chain for you, using Circle CCTP, Relay, Across and LayerZero behind the scenes. The [deposit and withdrawal guide](/guides/getting-started/how-to-deposit-on-arcus) covers it step by step. You may still want a small amount of ETH on the chain for the spot actions that are not gasless. [Get 5% Off Arcus Fees](https://app.arcus.xyz/ref/ARCUSGUIDE) --- ## Stock Tokens on Robinhood Chain The chain's headline asset is the Stock Token: an ERC-20 that gives economic exposure to a US stock or ETF. Two issuer names appear in official documents, and it is worth knowing which applies to what. - **Robinhood's own Stock Tokens**, offered in the Robinhood Wallet "in more than 120 countries," are described in Robinhood's disclosure as "tokenised debt securities issued by Robinhood Assets (Jersey) Limited" that do not give holders rights in the underlying shares. Robinhood says they are not available in the US and are restricted in other places, including Canada, the UK, Switzerland and the UAE. - **The Stock Tokens Arcus lists** are, according to [Arcus's docs](https://docs.arcus.xyz/concepts/spot-overview) and Help Center, "issued by Bitstamp," minted by Bitstamp Global Ltd. (BVI), with a contractual right to redeem for the cash value of the linked security. I could not find a public document that reconciles the two descriptions, so check the issuer disclosure attached to the specific token you hold. Robinhood's newsroom post lists Uniswap, Rialto, Lighter, Arcus and 1inch as venues for Stock Token spot trading inside the Robinhood Wallet, and since October 1, 2026 the wallet has routed Stock Token swaps through Arcus's RFQ system ([Arcus blog](https://arcus.xyz/blog/robinhood-wallet-integrates-arcus-api)). For trading hours, spreads and weekend quotes on Arcus, see [trading stocks 24/7 on Arcus](/guides/trading/trade-stocks-24-7-on-arcus). --- ## What else runs on Robinhood Chain DefiLlama tracked about $1.04 billion of total value locked on Robinhood Chain on October 2, 2026, its highest reading so far ([chains API](https://api.llama.fi/v2/chains)). The main venues: | App | What it does | Scale (DefiLlama, Oct 2, 2026) | |---|---|---| | Uniswap v3 and v4 | Public AMM for spot swaps | About $43 billion of 30-day DEX volume combined | | Morpho | Lending and borrowing | Largest TVL on the chain, about $583 million | | Lighter (Robinhood Chain deployment) | Perps order book, zero fees on Standard accounts | About 75% of the chain's 30-day perps volume | | Arcus | Stock Token spot and perps | About 24% of the chain's 30-day perps volume | | Rialto | Proprietary AMM for spot | Listed by Robinhood as a spot venue | | Orderly | Shared order book and no-code perp DEX launcher | On the chain since late August 2026 ([Crypto Briefing](https://cryptobriefing.com/orderly-robinhood-chain-no-code-perp-dex/)) | | Meridian (formerly Ethereal) | Small perps venue | About $1.65 million of 30-day volume | The perps picture matters if you are choosing where to trade. Lighter's separate Robinhood Chain exchange did about $12.7 billion of perps volume over 30 days against Arcus's $4.11 billion, and Robinhood's newsroom post says Lighter is the perps venue inside the Robinhood Wallet, with 11 million LIT tokens committed to the Robinhood community. The [Arcus vs Lighter](/compare/arcus-vs-lighter) comparison weighs the two on fees, depth and access; our sister site [lighterpedia.com](https://lighterpedia.com) covers Lighter in depth. Robinhood's Chain docs list both Lighter and Arcus as perps partners, and they note that appearing on that page "does not constitute an endorsement, partnership, affiliation." --- ## Incidents and risks on the chain ### The September 4, 2026 disruption On September 4, 2026, Robinhood Chain paused block production and batch posting for about 14 minutes around 12:57 UTC, according to [crypto.news](https://crypto.news/robinhood-chain-suffers-14-minute-network-outage/). [CryptoSlate](https://cryptoslate.com/robinhood-chain-kept-producing-blocks-through-a-roughly-40-minute-app-disruption/) described the same event as roughly 40 minutes of impaired app traffic. No losses were reported. The two reports frame the duration differently, which is worth remembering whenever you read a single outage figure. For Arcus users, a chain pause affects deposits, withdrawals and spot settlement directly. Perps matching happens off-chain at Arcus, but collateral custody and settlement depend on the chain. Arcus's escape hatch covers the case where Arcus or its validators stop working. It runs on Robinhood Chain, so it cannot help while the chain itself is paused. ### Sequencer and freezing Like other Arbitrum-stack Layer 2s, Robinhood Chain runs a sequencer that orders transactions. Arcus's Help Center adds that transfers to sanctioned addresses are blocked at the network level, and that Stock Token transfers can be restricted for a short window after purchase. Self-custody on this chain therefore has some limits that self-custody on Ethereum mainnet does not. ### Scams on the chain (not Arcus) Robinhood Chain is permissionless, so anyone can launch a token, and plenty of people have. Reported incidents include tokens that "vanished" from buyers' wallets after purchase in July 2026 ([KuCoin News](https://www.kucoin.com/news/flash/robinhood-chain-users-report-vanishing-tokens-scam-after-purchase)) and a rug-pull ring linked to 53 token launches and about $18.43 million in losses ([The Cryptonomist](https://en.cryptonomist.ch/2026/09/27/robinhood-chain-rug-pull/)). These involve third-party tokens, not Arcus. The scam that touches Arcus users most directly is the fake "Arcus" token. Unofficial ARCUS tokens trade on Robinhood Chain right now, and Arcus has no token at all. See [Arcus scams and fake sites](/privacy/arcus-scams-and-fake-sites) for the addresses we have seen and [which Arcus](/ecosystem/which-arcus) for the unrelated projects that share the name. > **Warning:** An app running on Robinhood Chain is not a Robinhood product. Arcus is built by dYdX Labs and only invested in by Robinhood Crypto; memecoin launchpads on the chain have no Robinhood backing at all. The [Arcus and dYdX guide](/ecosystem/arcus-and-dydx) explains who actually stands behind Arcus. --- ## How Arcus uses Robinhood Chain Arcus calls itself "exclusively on Robinhood Chain." Concretely: - **Spot:** Stock Token trades settle wallet to wallet on Robinhood Chain through the Arcus Spot Router, which pulls quotes from Arcus RFQ makers and Uniswap pools. - **Perps:** your USDG collateral sits in Arcus's Bridge Vault contract on Robinhood Chain. Orders match off-chain, a permissioned Arcus appchain re-verifies them, and state roots are committed to a Checkpoint Manager contract on the chain. - **pTokens:** Arcus's leveraged position tokens are ERC-20s on Robinhood Chain that you can hold in any compatible wallet ([pTokens guide](/ecosystem/arcus-ptokens)). The full product walkthrough is in [what is Arcus](/ecosystem/what-is-arcus), and [how to trade on Arcus](/guides/getting-started/how-to-trade-on-arcus) takes you from an empty wallet to a first trade. Arcus is not available in the US, Canada or the UK, and Robinhood's own Stock Tokens carry similar restrictions; [Arcus not available in your country](/troubleshooting/arcus-not-available-in-my-country) explains the rules as written. To try Arcus on Robinhood Chain, open [app.arcus.xyz](https://app.arcus.xyz/ref/ARCUSGUIDE). Spot works in eligible regions with no code, and joining with Concept211 gets you Arcus's 5% referred-user fee discount (ArcusGuide earns a share of fees from referred traders). [Get 5% Off Arcus Fees](https://app.arcus.xyz/ref/ARCUSGUIDE)