Mintfolio
Mintfolio is an on-chain protocol for creating and trading portfolios of tokenized stocks on Robinhood Chain. Anyone can bundle real tokenized equities (NVDA, AAPL, TSLA, …) into a single tokenized portfolio that other people can buy, hold, and redeem, while the portfolio's creator earns a cut of the fees.
Every portfolio is a smart-contract vault that custodies the underlying stock tokens and issues ERC-20 portfolio tokens. Buying mints portfolio tokens; redeeming burns them and returns the underlying. Redemption is always open and does not depend on an oracle — the vault is designed so you can always get your proportional slice of the underlying back.
What you can do
- Browse & buy — explore live portfolios, see their holdings, weights, NAV, and fees, and buy in with a single stablecoin (USDG) via a one-click zap, or by depositing the underlying tokens directly (in-kind).
- Redeem & sell — burn portfolio tokens to get the underlying back in-kind, or zap out to USDG in one transaction.
- Create a portfolio — pick 2–20 whitelisted constituents and their weights, set your fees, seed it from your own wallet, and deploy. You become the portfolio's on-chain creator and earn 90% of its fees.
Key properties
| Property | How it works |
|---|---|
| Real backing | Each portfolio holds the actual tokenized stocks on-chain. Balances are verifiable at any time. |
| Open redemption | redeemInKind is permissionless and can never be paused — the vault's solvency guarantee. |
| Oracle-free core | Mint and redeem are pro-rata on the vault's real token balances. Price feeds are used only for display, zap pricing, and fee accounting — never to gate deposits or withdrawals. |
| Non-custodial creation | Portfolios are deployed from the creator's own wallet; the creator address is recorded on-chain and receives fees directly. |
| Immutable portfolios | A portfolio's constituents and fee schedule are fixed at deploy. There is no admin key that can seize or rug a portfolio's assets. |
| Transparent fees | Entry ≤ 3%, exit ≤ 1%, management ≤ 3%/yr. Every fee is split 90% to the creator, 10% to the protocol. |
How it fits together
Mintfolio has three layers:
- Smart contracts on Robinhood Chain (chain id 4663) — the portfolios, the factory that deploys them, the token whitelist, and the zap periphery that routes one-click buys through Uniswap v4.
- A backend indexer + API that watches the chain, computes NAV, ranks portfolios, builds zap quotes, and serves everything over a REST API.
- A web app (
app.mintfolio.io) for browsing, trading, and creating portfolios.
Start with Architecture for the big picture, Core concepts for the vocabulary (NAV, portfolio tokens, in-kind vs. zap), or jump straight to the Smart contracts reference.
Mintfolio is experimental software. Nothing here is financial advice; creators are not licensed advisers. See Security & risk before interacting.