Side by side
0x vs Arbitrum
0x and Arbitrum both operate in the Aggregation & Execution part of the Robinhood Chain ecosystem. 0x — RFQ 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..
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.
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
| Field | 0x | Arbitrum |
|---|---|---|
| Type | infrastructure | infrastructure |
| Category | Aggregation & Execution | Adjacent & Watching |
| Status | active | active |
| Chains | Robinhood Chain | Robinhood Chain |
| Website | Yes | Yes |
| Docs | Yes | Yes |
| GitHub | Yes | Yes |
| Confidence | 90% | 90% |
| Sources | 3 | 3 |
Read on
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.