Arbitrum price surged 21% amid speculation of a potential Robinhood partnership. Increased on-chain activity, including a 25% rise in active addresses, points to a potential price surge. Technical indicators suggest a possible short-term rally to $1, with key support levels at $0.30 and $0.26.

Arbitrum (ARB), a leading Ethereum scaling solution, has seen its native token jump more than 21% in the past 24 hours, rising from $0.30 to nearly $0.39.

The altcoin’s sharp price increase has come amid huge anticipation from bulls, driven by speculation surrounding a potential partnership with Robinhood.

Also helping buyers is the overall bullish crypto market, with sentiment seeing Bitcoin (BTC) retest $108k and Ethereum break above $2,500.

According to details by on-chain data and analytics firm Lookonchain, ARB’s double-digit gains in the past 24 hours reflect growing market optimism tied to a possible Robinhood-Arbitrum collaboration.

2/ The rally in $ARB was fueled by speculation that Robinhood might partner with Arbitrum to build a blockchain platform enabling European investors to trade U.S. stocks. pic.twitter.com/P8TKREAXA2

— Lookonchain (@lookonchain) June 30, 2025

The speculation gained traction late June 29, 2025, after Robinhood posted an announcement on its X account.

In particular, it pointed to a fireside chat in Cannes at 7:45 PM CEST on June 30 that will feature Ethereum co-founder Vitalik Buterin, Robinhood’s crypto GM Johann Kerbrat, and Offchain Labs’ CSO.

Robinhood will stream the chat on its X and YouTube channels.

But what does this have to do with the ARB price?

Well, the rumours have increased since early reports that Robinhood could be looking to partner with Arbitrum in plans aimed at building a blockchain platform targeted for European investors.

The new platform would allow EU customers to trade US stocks.

Observers say the strategic alliance could enhance Arbitrum’s utility, with on-chain data from DefiLlama indicating a 25% increase in active addresses.

The address count jumped to more than 418,400 over the past 24 hours.

Amid Arbitrum’s latest surge, ARB has tested a critical resistance level near $0.39 as bullish momentum builds.

ARB chart by TradingView

Supporting this outlook, on-chain metrics reveal increased trading activity by market makers like GSR, which deposited 9.48 million ARB to Binance over the past week, and Wintermute, receiving 50.1 million ARB from Anchorage Digital custody wallets.

According to market data from DeFiLlama, Arbitrum recorded over $300 million in decentralized exchange (DEX) trading volume over the past 24 hours, pushing its 30-day cumulative volume above $17 billion.

DefiLlama data also highlights a 20% rise in chain revenue to $2.59 million over the past 24 hours, reflecting improved network usage.

Meanwhile, Coinglass shows open interest has increased by 48% to $266 million.

Technical indicators suggest potential for further gains, with analysts pointing to a possible rally toward $1 in the short term.

That’s if momentum holds. On the downside, key support levels to monitor will include $0.30 and $0.26.

The post Arbitrum price prediction as Robinhood rumours spark 21% surge appeared first on CoinJournal.

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