The Book · 27 Jul 2026
Side by side

0x vs Arbitrum

0x and Arbitrum both operate in the Aggregation & Execution part of the Robinhood Chain ecosystem. 0xRFQ liquidity for Stock Tokens and the cross-chain swap route into Robinhood Chain.. Arbitrum The L2 stack Robinhood Chain is built on — and takes a revenue cut from..

0x logo
0xactive

RFQ liquidity for Stock Tokens and the cross-chain swap route into Robinhood Chain.

Two roles, day one
0x provides both RFQ-based Swap API liquidity and cross-chain swap access on Robinhood Chain from launch.
RFQ liquidity for Stock Tokens
The Swap API exposes request-for-quote liquidity for Stock Tokens, with USDG as the primary base pair.
Cross-Chain API into Robinhood Wallet
As the wallet's cross-chain swap provider, it lets users on Ethereum, Arbitrum, Base and Solana buy/sell Stock Tokens or bridge USDG in one transaction.
Built on GA cross-chain rails
The integration uses 0x's Cross-Chain API, which reached general availability on 4 July 2026 after a private beta that bridged over $230m across 25+ chains via 12+ bridge providers.
Arbitrum logo
Arbitrumactive

The L2 stack Robinhood Chain is built on — and takes a revenue cut from.

The stack
Robinhood Chain is a dedicated Arbitrum chain built on the Arbitrum stack (Orbit / Dedicated Chains, Nitro), settling to Ethereum.
Expansion Program revenue share
Under the Arbitrum Expansion Program the chain routes 10% of net protocol revenue to the Arbitrum ecosystem.
Revenue split
Of that 10%, a reported 8% goes to the Arbitrum DAO treasury and 2% to the Arbitrum Developer Guild.
Inherited properties
The chain's EVM tooling, ~100ms blocks and Ethereum settlement are properties of the Arbitrum stack rather than bespoke design.

The record

How they compare

Field0xArbitrum
Typeinfrastructureinfrastructure
CategoryAggregation & ExecutionAdjacent & Watching
Statusactiveactive
ChainsRobinhood ChainRobinhood Chain
WebsiteYesYes
DocsYesYes
GitHubYesYes
Confidence90%90%
Sources33

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Answers

0x vs Arbitrum: questions

What is the difference between 0x and Arbitrum on Robinhood Chain?
0x is RFQ liquidity for Stock Tokens and the cross-chain swap route into Robinhood Chain.. Arbitrum is The L2 stack Robinhood Chain is built on — and takes a revenue cut from.. Both sit in the Aggregation & Execution part of the Robinhood Chain ecosystem.
Is 0x or Arbitrum live on Robinhood Chain?
Neither is confirmed on Robinhood Chain mainnet yet — 0x is active and Arbitrum is active. Status is tracked from primary sources.
Should I choose 0x or Arbitrum?
It depends on your use case — both serve the Aggregation & Execution role on Robinhood Chain. Compare them on type, status, chains, integrations and source-backed confidence (0x: 90%, Arbitrum: 90%), then read each full profile before deciding.