Robinhood Chain boosts Arbitrum’s revenue case

For years, the investment case for Arbitrum (CRYPTO: ARB) had an obvious problem.

Arbitrum was one of the largest Ethereum Layer-2 networks in terms of activity, liquidity, and institutional adoption.

Yet ARB, its native cryptocurrency, remained difficult to value.

The network generated economic activity, while the token largely captured governance.

However, that gap is now starting to close.

Robinhood (NASDAQ: HOOD ) Chain went live on the Arbitrum technology stack on July 1.

Less than two months later, the chain is processing more than $1.5 billion in daily decentralized exchange volume and has recorded a single-day fee haul of $3.75 million.

At the same time, ArbitrumDAO reported $6.19 million of income for the first half of 2026.

More importantly, Arbitrum Expansion Program licensing fees generated $360,000 in July, representing 35% of the DAO’s income for the month in which Robinhood Chain launched.

That changes the investment debate, meaning the question is no longer whether Arbitrum can attract large companies since it already has.

The question is whether Arbitrum can turn that enterprise adoption into a durable revenue stream for its ecosystem and eventually improve the fundamental case for ARB.

Robinhood Just Became Arbitrum’s Biggest Proof of Concept Robinhood Chain is important because it tests Arbitrum’s business model at scale.

For those unfamiliar, the chain is built using Arbitrum’s technology and settles on Ethereum.

Because it operates under the Arbitrum Expansion Program, it returns 10% of net protocol revenue to the Arbitrum ecosystem.

That 10% is split between the Arbitrum DAO and the developer component, with 8% going to the DAO treasury and 2% allocated to development.

This means the headline $3.75 million fee figure should not be treated as $375,000 of direct DAO revenue.

Furthermore, the contractual payment is calculated based on net protocol revenue after applicable settlement costs.

Even so, the scale of Robinhood Chain’s activity is difficult to ignore.

On Sept.

1, users paid approximately $3.75 million in fees on the chain.

DEX volume exceeded $1.5 billion, while total value locked surpassed $800 million, according to DeFiLlama.

Robinhood Chain Metrics | Credit: DeFiLlama For a network launched on July 1, that is a remarkable ramp.

It also provides Arbitrum with something it previously lacked: a live demonstration that third-party companies can generate meaningful economic activity on its technology while simultaneously creating revenue for the broader Arbitrum ecosystem.

The Numbers Behind the ARB Re-Rating Interestingly, the market has begun to react.

ARB traded around $0.084 at the end of August before climbing above $0.12 in early September.

On Sept.

2, the token closed around $0.14, according to historical market data, representing a 50% price jump over the past seven days The move has also seen a notable increase in derivatives activity.

On Sept.

1, ARB futures volume jumped approximately 1,143% to $1.37 billion, while open interest increased 80.91% to $164.68 million, according to CoinGlass data reported at the time.

That combination is important since the ARB price action alone can be dismissed as speculation.

Instead, the rising open interest that suggests that traders are allocating substantially more capital to the ARB trade.

ARB Open Interest | Credit: Coinglass However, leverage cuts both ways.

If momentum continues, rising open interest can amplify upside.

If the rally reverses, the same leverage can accelerate liquidations and turn a healthy correction into a sharp drawdown.

That makes derivatives positioning one of the most important metrics for ARB holders to watch over the coming weeks.

Arbitrum Is Becoming an Infrastructure Business The bigger investment thesis extends beyond Robinhood.