Arbitrum, a leading Ethereum layer 2 scaling solution, has conducted tests on 16 different cross-chain routes to its network. The aim was to ensure that users, referred to as 'Arbinauts', are able to save money when using the Hourglass feature. According to the report, the results of these tests were excellent. Arbitrum also highlighted that its community does not offer any tangible benefits beyond a corresponding role on its Discord server.
Today we tested 16 different cross-chain routes to @arbitrum to make sure Arbinauts are saving money on Hourglass. The results were excellent.
Robinhood Launches Tokenized Stocks on Arbitrum

**Robinhood** has partnered with **Arbitrum** to launch tokenized stocks and ETFs on the blockchain. Key details: - 200+ US stocks and ETF tokens will be available on Arbitrum One - Initially launching for EU customers through the Robinhood app - Traditional user experience maintained, backed by blockchain technology - Future plans include a dedicated Robinhood Layer 2 blockchain using Orbit stack This integration aims to merge DeFi and TradFi while expanding crypto accessibility globally. [Learn more](http://blog.arbitrum.io/robinhood-is-realizing-the-crypto-vision/)
gTrade Week Highlights: Volume Surge and v10 Preview

**GainsNetwork's gTrade** achieved significant milestones in 2025: - $60B+ Total Volume - $40M+ Revenue - $20M+ TVL **Upcoming v10 release** features: - OI Hedging implementation - Enhanced trader tooling - $200K trading competition launch Platform expansion continues on Arbitrum with new integrations and community engagement. [Full details available here](https://blog.arbitrum.io/gtrade-on-arbitrum-a-new-era-for-onchain-trading/) *Stay informed about future Chain Reaction spotlights.*
Rho Brings Interest Rate Derivatives to Arbitrum

**Rho** is expanding DeFi capabilities on Arbitrum by introducing interest rate derivatives markets. This development marks a significant step in bringing traditional financial instruments to the blockchain space. - Rho is implementing interest rate derivatives on Arbitrum One - The platform enables onchain swaps for interest rate products - Recent records indicate growing adoption and usage [Read the full announcement](https://blog.arbitrum.io/rho-brings-interest-rate-derivatives-to-defi-on-arbitrum-one-swap-at-a-time/)
DIA Oracle Announces Free Grants Program on Arbitrum
DIA Oracle has launched a significant grant initiative for developers building on Arbitrum. The program offers: - Free oracle access for up to 12 months - Available to all dApps on Arbitrum network - Streamlined application process Developers can access reliable oracle data without upfront costs, supporting innovation in the Arbitrum ecosystem. Applications are now open through [DIA's official grant portal](https://www.diadata.org/blockchain-oracle-grant/arbitrum-grant/).
Stylus Physical Redemptions and Mint Deadline

**Stylus** offers a unique opportunity for collectors of **Infinite Rainbows** by @JimenaBuenaVida: - Physical redemptions begin Monday, Oct 7 at 12:00pm ET - Mint deadline: Sunday, Oct 6 at 12:00pm ET - Exclusive minting available at http://mintstylus.xyz Don't miss this chance to participate in both digital and physical art collection. Mark your calendars and prepare for this limited-time event. *Visit the official website for more details and to participate in the mint.*