{"id":"rialto","title":"Rialto","content":"**Rialto** is an on-chain spot exchange for trading tokenized equities, ETFs, commodities, [crypto](https://iq.wiki/wiki/cryptocurrency) assets, and pre-IPO assets with best-execution routing within the [Robinhood Chain](https://iq.wiki/wiki/robinhood-chain) ecosystem. Launched from stealth in July 2026 after about one year of development, the project was developed in collaboration with Robinhood Crypto, Offchain, and [Arbitrum](https://iq.wiki/wiki/arbitrum), and uses a proprietary automated market maker model called PropAMM.\n\n## Technology & Architecture\n\nRialto's liquidity mechanism is implemented as proprietary [automated market makers](https://iq.wiki/wiki/automated-market-maker) called PropAMMs. These on-chain market makers quote prices based on their own pricing logic and inventory rather than using a passive constant-product pool. Rialto's PropAMM implementation, Rivo Altus, provides baseline on-chain liquidity while competing alongside conventional DEX pools and third-party market makers for individual quotes. The platform quotes candidate liquidity sources on-chain at request time, ranks routes by expected output net of gas costs, and settles the selected route. The implementation uses Arbitrum's Stylus tooling for custom on-chain pricing logic and relies on [Robinhood Chain](https://iq.wiki/wiki/robinhood-chain)'s low block times and [Ethereum](https://iq.wiki/wiki/ethereum) composability. [\\[5\\]](#cite-id-005505e0-5c6c-401c-a869-9d0cd379cca7) [\\[3\\]](#cite-id-a5350464-ba4d-4785-9d32-f478f9bf5cd1)​\n\n## Products & Use Cases\n\nAt launch, Rialto supported trading of more than 90 tokenized Robinhood stock tokens alongside major crypto assets. Users can self-custody equity tokens and use them as collateral with third-party lending services. Rialto also operates a token issuance/launch mechanism called Varo, based on [Uniswap](https://iq.wiki/wiki/uniswap) V3 contract architecture, which enables tokens with a fixed supply to be traded via integrated liquidity positions without custom bonding curves. [\\[7\\]](#cite-id-7a8c532c-2844-4145-a11b-70758f475b5b)​","summary":"Rialto, built on Robinhood Chain, is a decentralized spot exchange using PropAMM for trading tokenized equities, ETFs, commodities, and crypto assets, providing deep onchain liquidity with integration on Arbitrum.","images":[{"id":"QmXnVVLqZPNvBWK425zVqukR4L7w4aJnDDGed4QHFdVxVj","type":"image/jpeg, image/png"}],"categories":[{"id":"projects-and-protocols","title":"Projects & Protocols"}],"tags":[{"id":"DeFi"},{"id":"Arbitrum"},{"id":"Infrastructure"},{"id":"RWA"}],"media":[{"id":"QmbR1YyYjeQfw3BrNWptNUPm7jwVTjbZmR1GpL4zgZhdoq","size":null,"name":"images (5).png","type":null,"source":"IPFS_IMG"}],"metadata":[{"id":"website","value":"https://rialto.xyz/"},{"id":"twitter_profile","value":"https://x.com/rialto_xyz"},{"id":"reddit_profile","value":"https://reddit.com/r/RialtoAI"},{"id":"discord_profile","value":"https://t.me/joinchat/AAAAAEJIJRvGtIsNu7zOvw"},{"id":"etherscan","value":"https://etherscan.io/token/0xb24754be79281553dc1adc160ddf5cd9b74361a4"},{"id":"contract_url","value":"https://ethplorer.io/address/0xb24754be79281553dc1adc160ddf5cd9b74361a4"},{"id":"rootdata_profile","value":"https://www.rootdata.com/Projects/detail/Rialto?k=MjQ4MTA="},{"id":"references","value":"[{\"id\":\"1cc78e9e-cdf9-47ef-b9b1-b48d878dd64b\",\"url\":\"https://www.rootdata.com/projects/detail/Rialto?k=MjQ4MTA%3D\",\"description\":\"RootData project page for Rialto\",\"timestamp\":1785430470973},{\"id\":\"f01766dd-ab4f-4a1c-b9d5-6f65432a4d46\",\"url\":\"https://blog.rialto.xyz/blog/introducing-rialto\",\"description\":\"Rialto blog — Introducing Rialto\",\"timestamp\":1785430470973},{\"id\":\"a5350464-ba4d-4785-9d32-f478f9bf5cd1\",\"url\":\"https://docs.rialto.xyz/\",\"description\":\"Rialto documentation\",\"timestamp\":1785430470973},{\"id\":\"75c2c51f-b847-4173-a1c4-e837dbc249c8\",\"url\":\"https://phemex.com/news/article/rialto-launches-onchain-spot-exchange-for-multiasset-trading-91657\",\"description\":\"Phemex news article on Rialto launch\",\"timestamp\":1785430470973},{\"id\":\"005505e0-5c6c-401c-a869-9d0cd379cca7\",\"url\":\"https://ethdaily.io/rialto-emerges-from-stealth-with-propamm-spot-exchange\",\"description\":\"ETHDaily coverage of Rialto's PropAMM launch\",\"timestamp\":1785430470973},{\"id\":\"ec0c8c0b-7c18-408a-9954-99b04155aa10\",\"url\":\"https://www.weex.com/news/detail/the-on-chain-exchange-rialto-is-officially-launched-supported-by-robinhood-and-arbitrum-and-offers-multi-asset-trading-r1jj8bkd8itutl2i4621ohfq\",\"description\":\"WEEX news on Rialto launch\",\"timestamp\":1785430470973},{\"id\":\"7a8c532c-2844-4145-a11b-70758f475b5b\",\"url\":\"https://www.cryptotimes.io/2026/07/28/varo-hits-31-6m-volume-within-first-14-hours-on-robinhood-chain/\",\"description\":\"CryptoTimes report on Varo volume\",\"timestamp\":1785430470973},{\"id\":\"b5bea37c-0657-4a7a-ad5d-e86829b13dd6\",\"url\":\"https://www.rialtobridge.xyz/\",\"description\":\"Rialto Bridge (distinct entity)\",\"timestamp\":1785430470973},{\"id\":\"L53tNOBSW92l9EhH\",\"url\":\"https://x.com/riley\\\\_gmi/status/2074161449619116314\",\"description\":\"Riley's X account\",\"timestamp\":1785431209452},{\"id\":\"2J8AIa7lIFmlFwa8\",\"url\":\"https://x.com/rialto\\\\_xyz\",\"description\":\"Rialto's X account\",\"timestamp\":1785431209453}]"},{"id":"previous_cid","value":"\"https://ipfs.everipedia.org/ipfs/QmcWgTQYrzruEnZ4XuimtyVXtDgrrNhMAHgM863SDazMDr\""},{"id":"commit-message","value":"\"Updated wiki content; reordered tags (moved RWA); standardized category to Projects & Protocols; added 1 event (now 2); updated media/images.\""},{"id":"previous_cid","value":"QmcWgTQYrzruEnZ4XuimtyVXtDgrrNhMAHgM863SDazMDr"}],"events":[{"date":"2026-07-01","title":"Rialto Inception","type":"CREATED","description":"Rialto was officially launched, marking the beginning of a new onchain trading era with deep liquidity for diverse asset types.","link":null,"multiDateStart":null,"multiDateEnd":null,"continent":null,"country":null,"id":"c04fb5b4-b7d2-4aed-bfda-4a0acd0906a5"}],"user":{"id":"0x8af7a19a26d8fbc48defb35aefb15ec8c407f889"},"author":{"id":"0x8AF7a19a26d8FBC48dEfB35AEfb15Ec8c407f889"},"operator":{"id":"0x1E23b34d3106F0C1c74D17f2Cd0F65cdb039b138"},"language":"en","version":1,"linkedWikis":{"blockchains":["arbitrum"],"founders":["anon"],"speakers":[]},"recentActivity":"{\"items\":[{\"id\":\"0cd2fc52-9863-446b-b773-ffa79d5884e9\",\"title\":\"Rialto\",\"description\":\"Rialto, built on Robinhood Chain, is a decentralized spot exchange using PropAMM for trading tokenized equities, ETFs, commodities, and crypto assets, providing deep onchain liquidity with integration on Arbitrum.\",\"timestamp\":\"2026-08-01T23:09:27.302Z\",\"category\":\"Projects & Protocols\",\"status\":{\"icon\":\"RiGlobalLine\",\"label\":\"Wiki Updated\",\"iconClassName\":\"text-green-500\"},\"user\":{\"name\":\"0x8AF7a19a26d8FBC48dEfB35AEfb15Ec8c407f889\",\"address\":\"0x1E23b34d3106F0C1c74D17f2Cd0F65cdb039b138\"},\"button\":{\"label\":\"View Summary\",\"icon\":\"RiFileTextLine\"},\"summarySections\":[{\"title\":\"Title\",\"subtitle\":\"Page title was changed\",\"variant\":\"modified\",\"changeCount\":1,\"changes\":[\"Changed title from \\\"projects-and-protocols\\\" to \\\"Projects & Protocols\\\"\"]},{\"title\":\"Content — Introduction\",\"subtitle\":\"Introduction text was rewritten and inline links/formatting changed\",\"variant\":\"modified\",\"changeCount\":1,\"changes\":[\"Rewrote introduction text; 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