01 · Protocol overview Live on Robinhood Chain
Earn yield on your stocks.
The first DeFi protocol for tokenized Wall Street.
StockYield is an independent, non-custodial protocol on Robinhood Chain. It takes Robinhood Stock Tokens — ERC-20 representations of listed equities and ETFs — and gives them the primitives DeFi expects: settlement claims that separate principal from yield, a pre-funded synthetic desk for long/short baskets, fixed-recipe ETFs, and a defined-risk options stack.
1.1 Why this exists
Robinhood put stocks onchain. On their own, Stock Tokens are inert: an ERC-20 that tracks a share price, with dividends and corporate actions reflected through an issuer-controlled uiMultiplier() rather than a cash distribution. There is no native way to lend them, split them, index them, hedge them or write options on them.
StockYield is the layer that makes those tokens do something. Every product settles onchain against the Stock Token itself or against public oracle prints; nothing is custodied, and no product depends on a broker, an account, or market hours.
StockYield is not affiliated with Robinhood Markets, Inc. Stock Tokens remain issuer-controlled instruments; the issuer can pause, block, burn or upgrade them, and every StockYield product is subject to those controls.
1.2 System architecture
Four product surfaces sit on one settlement chain. Inputs are the Robinhood Stock Token registry and public price feeds; outputs are ERC-20 claims, basket positions, ETF units and option series that any wallet can hold and any market can trade.
1.3 Product map
| Product | What it does | Settles against | Status |
|---|---|---|---|
| Settlement claims | Splits a Stock Token into a principal claim (PT) and a residual yield claim (YT) for a fixed series window. | Held Stock Token collateral · attested oracle | Live |
| Synthetic basket desk | Opens any long/short basket over 75 feeds as one position with one margin; both sides pre-funded so nothing is liquidated. | Chainlink + Pyth prints | Live |
| Basket desk vault (sDESK) | Counterparty capital for every basket; anyone can deposit and hold sDESK shares priced on desk equity. | Desk equity | Live |
| Basket ETF | Permissionless fixed-recipe ETFs of Stock Tokens; mint by depositing the recipe, redeem by burning. | Held constituent tokens | Live |
| Defined-risk options | Fully collateralised calls and puts on Stock Tokens with a signed quote book and treasury writer. | Escrowed collateral | Contracts live · modeled |
| $SYIELD | Protocol token. Trading-fee revenue funds the liquidity engine, infrastructure and development. | — | Launching |
1.4 Design principles
- Immutable core. Series, desk, factory and token contracts have no owner, no pause and no upgrade path. Where an owner exists (eligibility policies) its powers are enumerated in Security model.
- Pre-funded, not liquidated. The basket desk reserves the maximum payout on both sides at open. There is no liquidation engine because there is no undercollateralised state to liquidate.
- Every number names its source. Interface figures are labelled by origin — Stock Token registry, Blockscout, oracle print — and are never blended or interpolated.
- Fail closed. Malformed oracle responses, stale prints, or registry failures stop the affected action rather than degrade it silently.
- Wallet only. The interface never requests a password, seed phrase or private key. Connecting reveals a public address; every state change is a wallet-reviewed transaction.