Event Background: The Mainstream Process of Layer2 Scaling
On March 5, 2025, mainstream U.S. trading platform Robinhood announced the official launch of Ethereum’s Layer2 solution Arbitrum (ARB). This integration allows users to trade ARB tokens directly via Robinhood’s self-custody wallet and to access DeFi protocols within the Arbitrum ecosystem. This move is seen as a key step by a traditional financial platform in embracing blockchain scaling technology, aiming to address the long-standing issues of high Gas fees and network congestion on the Ethereum mainnet.
According to JuCoin data, following the announcement, the ARB price surged briefly by 10%, reaching as high as USD 2.02, reflecting market optimism over the widespread adoption of Layer2 technology. Currently, Arbitrum holds 55% of the Layer2 market share, with a total locked value (TVL) of USD 20 billion—far surpassing competitors like Optimism and Sui.

Technical Integration and User Experience Upgrades
Robinhood has integrated the Arbitrum network into its self-custody wallet, enabling users to seamlessly access decentralized exchanges such as Uniswap and SushiSwap. Additionally, by aggregating optimal quotes via the 0x protocol, the platform achieves near real-time “gas-free” trading. This technological breakthrough lowers the barrier for ordinary users to participate in Layer2—users can perform cross-chain asset transactions without manually switching networks or managing private keys.
Furthermore, Robinhood plans to gradually introduce tokens from the Arbitrum ecosystem (such as GMX and RDNT) and explore the possibility of trading securitized tokens. ARB’s 24-hour trading volume grew by 18% to USD 320 million, indicating strong investor demand for scaling technology.
Market Impact: Synergies Between Crypto and Traditional Finance
Robinhood’s strategy with ARB is clear: to lower the technical entry barriers for users to participate in DeFi while expanding revenue streams. The platform aims to boost profitability through fee-sharing and staking services (for example, European users may stake SOL), with an expectation that crypto business revenue will rise to 25% by 2025.
For the Arbitrum ecosystem, the injection of Robinhood’s user traffic could accelerate its transformation from a “developer tool” to a “mass-market financial infrastructure.” Leading protocols are already benefiting—GMX (a decentralized derivatives platform) has seen a 12% TVL increase, and RDNT (a cross-chain lending protocol) has experienced a 25% market cap rise in one week, showcasing significant ecosystem synergy.
Potential Risks: Regulatory and Technical Challenges
Despite its promising prospects, the Robinhood-Arbitrum partnership faces multiple risks:
- Regulatory Uncertainty: The SEC has not yet withdrawn its “Wells Notice” against Robinhood; if ARB is deemed a security, it could lead to delisting or fines.
- Technical Vulnerabilities: Complex cross-chain interactions might expose smart contract risks (referencing the 2024 Solana outage).
- Token Sell Pressure: With 35% of ARB tokens held by private investors, a concentrated sell-off could trigger price volatility.
Additionally, the EU MiCA legislation requires Layer2 node operators to register for compliance, potentially limiting Arbitrum’s advantage of anonymity and increasing operational costs.
Future Outlook: Validating the Practical Value of Layer2
2025 will be a critical year for the development of the Arbitrum ecosystem:
- Q2: A mobile app is planned for launch, integrated with AR/VR gaming features to attract a broader user base.
- Q3: Robinhood may introduce ARB staking services, with expected annual yields of 8%-15%, incentivizing long-term holding.
- Q4: If TVL exceeds USD 30 billion, ARB might rank among the top 20 crypto assets by market cap.
Investors should closely monitor on-chain data (such as staking rates and large holder positions) and regulatory updates. While the Robinhood-Arbitrum collaboration sets a benchmark for mainstream Layer2 adoption, its success still depends on overcoming significant regulatory and technical hurdles. In the evolving landscape of crypto finance, only projects that combine innovation with stability will stand out from the competition.