Arbitrum (ARB) Surges 6% as Robinhood's Blockchain Development Sparks Investor Optimism

Arbitrum (ARB) has emerged as a standout performer among top-100 altcoins by market capitalization, experiencing a significant price surge. The altcoin, integral to one of the leading layer-two networks for Ethereum, saw a 6% increase in value over the past 24 hours, trading at approximately $0.3412 during the mid-North American session on Monday, June 30, 2025. This performance has resulted in a 20% gain for ARB over the past week, solidifying its position as a mid-cap altcoin with a fully diluted valuation of around $2.4 billion.

The surge in ARB's price can be largely attributed to the support from Robinhood Markets Inc. On Monday, Robinhood confirmed its development of a blockchain on the Arbitrum network, a move that has sparked considerable interest and optimism among investors. Robinhood, known for its strong community of over 14 million retail investors, particularly in North America, has seen its shares gain over 12% following the announcement of its new web3 product built on Arbitrum.

Technical analysis indicates that ARB has established a robust support level around $0.2673, with the price rebounding twice year-to-date. In the weekly timeframe, ARB has been in a falling trend characterized by lower lows and lower highs. However, the daily timeframe shows ARB breaking out of this macro falling trend and retesting, with the daily MACD line almost crossing the Signal line. The bullish divergence of the Relative Strength Index (RSI) further supports the potential for ARB to rally beyond 47 cents in the near term, establishing a macro rising trend.

Speculation surrounding a potential partnership between Arbitrum and Robinhood has driven a nearly 40% increase in ARB's value over the past week. The token's price jumped from approximately 30 cents to nearly 39 cents within a 24-hour period. This speculation was fueled by an announcement on Robinhood's X account, hinting at a fireside chat featuring Ethereum co-founder Vitalik Buterin, Robinhood’s crypto GM Johann Kerbrat, and Offchain Labs’ CSO. This event, scheduled for late June 30, 2025, has led to rumors that Robinhood might be exploring a partnership with Arbitrum to develop a blockchain platform. This platform is speculated to enable European investors to trade U.S. stocks, potentially enhancing Arbitrum’s utility and market presence.

On-chain data and analytics firm Lookonchain reported that ARB’s double-digit gains reflect growing market optimism tied to this possible collaboration. The increased on-chain activity, including a 25% rise in active addresses to over 418,400, further supports the bullish sentiment. Market makers like GSR and Wintermute have also shown increased trading activity, depositing significant amounts of ARB to various exchanges. This heightened activity has pushed Arbitrum’s 30-day cumulative decentralized exchange (DEX) trading volume above 17 billion, with a 20% rise in chain revenue to 2.59 million over the past 24 hours.

Technical indicators suggest that ARB could experience further gains, with analysts pointing to a possible rally toward 1 in the short term. However, key support levels at 30 cents and 26 cents will need to be monitored to ensure sustained momentum. The overall bullish crypto market, with Bitcoin retesting 108,000 and Ethereum breaking above 2,500, has also contributed to the positive sentiment surrounding ARB. As the market awaits further developments from the Robinhood-Arbitrum collaboration, the potential for ARB to continue its upward trajectory remains a topic of keen interest among investors.