Robinhood Chain is evaluating a new Arbitrum-developed system that could let traders pay higher fees to move individual transactions ahead of others, according to a person familiar with the matter, as the blockchain expands its role in distributing tokenized financial assets.
A new model for transaction ordering
The technology under consideration is Arbitrum’s Priority Gas Auctions, a transaction-ordering model introduced on September 24. It replaced Arbitrum’s earlier Timeboost system, which offered participants a 200-millisecond head start in transaction sequencing.
Priority Gas Auctions works differently. Rather than granting a fixed timing advantage, it allows traders to bid through higher fees for individual transactions to be processed before competing transactions. The system is being developed by Arbitrum, the infrastructure provider behind Robinhood Chain, but it is not affiliated with Robinhood Chain itself.
The evaluation is private, and the person familiar with the matter spoke anonymously. Robinhood declined to comment, while Off-Chain Labs, the developer behind Arbitrum, did not immediately respond to a request for comment, according to CoinDesk.
Robinhood Chain currently orders transactions on a first-come, first-served basis. It has not used Arbitrum’s original Timeboost application, meaning the possible review of Priority Gas Auctions would represent consideration of a new approach rather than a direct switch from the older system.
Why priority matters for tokenized assets
Transaction ordering can be important in markets where trading opportunities may last only fractions of a second. A fee-based system can give professional trading firms a faster route for having selected orders processed, potentially improving their ability to compete for those opportunities.
Robinhood Chain is an Ethereum-compatible Layer-2 blockchain designed for tokenized real-world financial assets. Layer-2 networks process activity using infrastructure connected to an underlying blockchain, in this case Arbitrum’s technology, while supporting transactions related to applications built on the network.
Robinhood launched the chain in July. Since then, it has entered the top 10 blockchains ranked by total value locked, a measure of assets deposited in blockchain applications and protocols. The network is part of Robinhood’s broader effort to connect its traditional brokerage business with an always-on, onchain method of distributing tokenized stocks.
The company’s established brokerage operation has long generated revenue through payment for order flow, under which market makers pay brokers for directing customer trades to them. Fee-based transaction priority on a blockchain is a separate mechanism. It concerns the sequencing and processing of transactions on a network rather than the routing of brokerage orders to a market maker.
MEV and the trade-off around speed
The proposed model also touches on maximum extractable value, commonly called MEV. On transparent blockchains, pending transactions can sometimes be visible before they are finalized. Other participants may attempt to benefit by placing their own transactions ahead of them, a practice broadly described as frontrunning.
A system that lets traders compete openly through fees for transaction priority could change how that competition takes place. The source material says fee-based ordering may prevent the frontrunning of transparent blockchain trades and could create a more level playing field for entities seeking faster trading connections.
The underlying speed advantage has a familiar parallel in traditional finance, where high-frequency trading firms have invested in faster connections and processing. The subject was widely discussed in the book “Flash Boys.” Onchain transaction priority applies a comparable focus on execution speed, but within a blockchain’s publicly observable transaction environment.
The evaluation does not establish that Robinhood Chain will adopt Priority Gas Auctions, nor does the material provide terms, a launch date or details of how any fee system would operate on the network. It indicates only that the newer Arbitrum model is being considered while Robinhood Chain continues to use first-come, first-served ordering.
Current market picture
Moneyiar market data at the stated times show Arbitrum’s ARB token at $0.1998131042 at 11:34 a.m. on October 11, 2026, Tehran time. ARB was up 8.21% over 24 hours but down 0.4% over seven days.
Other figures in the same Moneyiar data set were:
- Decimal (DEL): $0.399224559, up 3.01% in 24 hours and down 1.37% over seven days, as of 11:33 a.m. on October 11, 2026.
- Gas (GAS): $1.3652942222, up 1.39% in 24 hours and down 3.61% over seven days, as of 11:33 a.m. on October 11, 2026.
- Fusionist (ACE): $0.2793144821, up 45.34% in 24 hours and 146.86% over seven days, as of 6:44 p.m. on August 20, 2026.
These market figures describe price movements at the stated times and do not indicate whether Robinhood Chain will adopt Arbitrum’s proposed transaction-ordering technology.
