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How Solune works
Solune is an interface and a set of contracts for trading tokenized stocks on Robinhood Chain (chain 4663). Stock tokens trade on-chain every hour of every day, while the stock market they track opens and closes. Solune is built around that gap.
Prices
Stock prices on the page are read straight from Chainlink feeds on Robinhood Chain, all in one Multicall request every 20 seconds. There are no API keys and no cached copies. Next to each oracle price the page shows the live DEX price from GeckoTerminal and the gap between the two, so you can see when a pool has drifted from the reference price.
Chainlink equity feeds update when the price moves by 0.5% or when their heartbeat expires, and they pause outside market hours. The "Updated" column shows the age of every answer. If a value cannot be read, the page shows a dash instead of a guess.
Best route across Uniswap v3 and v4
Every quote checks all four Uniswap v3 fee tiers and every known Uniswap v4 pool for the pair in a single call, then picks the one that pays you the most. Open "All routes checked" under the swap card to see every quote side by side. Swaps are exact input with a minimum output set by your slippage choice, and the quote is refreshed right before you sign.
The session hook
SoluneSessionHook is a Uniswap v4 hook with a dynamic fee. It runs before every swap in a Solune pool and sets that swap's fee from three inputs.
- Oracle distance. It compares the pool price with the Chainlink price. A swap that moves the pool toward the oracle pays less, down to a floor. A swap that pushes it further away pays more, up to a ceiling. Arbitrage that corrects the pool becomes cheap, and trades that exploit a stale pool become expensive.
- The calendar. From Saturday 00:00 UTC to Monday 01:00 UTC, and during holiday closures set on-chain, the pool charges a flat closed-market fee. Liquidity providers are paid for the risk that the stock gaps at the next open.
- Oracle health. If a feed returns a bad answer or has not updated for longer than its limit, the hook stops trusting it and uses the closed-market fee.
Fees are capped at 5% in the contract. Anyone can read the fee the next swap would pay with quoteFee(poolKey, zeroForOne), and the Hook section of the app shows it live for every pool.
The router
SoluneRouter executes swaps on Uniswap v4 pools (through the PoolManager) and on Uniswap v3 (through SwapRouter02). It accepts native ETH and ERC-20 tokens, enforces your minimum output and deadline, and refunds anything left unused. When the router is live the app routes through it and shows its protocol fee on each quote. The fee is read from the contract, is capped at 1% in code, and funds the work on Solune.
The Solune token
The Solune token launches on Pons, the launchpad on Robinhood Chain. It starts on a bonding curve and moves to a Uniswap v4 pool when the curve fills. The app watches the chain and shows the real contract address, price and status the moment it exists. Always check the address on this site or on our official X account before you buy.
Automatic detection
The app does not wait for a redeploy to learn about new contracts. Every three seconds it reads the chain for contracts created by the project wallet, confirms each one by calling it, and wires it in. The same goes for new hook pools and for the token launch.
Contracts used
| Contract | Address |
|---|---|
| Uniswap v4 PoolManager | 0x8366a39CC670B4001A1121B8F6A443A643e40951 |
| Uniswap v4 Quoter | 0x8Dc178eFB8111BB0973Dd9d722ebeFF267c98F94 |
| Uniswap v3 SwapRouter02 | 0xCaf681a66D020601342297493863E78C959E5cb2 |
| Uniswap v3 QuoterV2 | 0x33e885eD0Ec9bF04EcfB19341582aADCb4c8A9E7 |
| WETH | 0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73 |
| USDG | 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 |
| Chainlink ETH / USD | 0x78F3556b67E17Df817D51Ef5a990cDaF09E8d3A9 |
Solune's own hook and router addresses appear in the Hook section of the app once they are on-chain, with a link to the explorer.
Risks
- Smart contracts can have bugs. Trade only what you can afford to lose.
- Pools can be thin. Check "Versus Chainlink" on a quote before a large swap.
- Oracles can lag, and markets can gap when they reopen.
- Tokenized stocks are not available to US persons. Check the rules where you live.
Solune is independent and is not affiliated with Robinhood Markets, Uniswap Labs or Chainlink.