FOLIO combines a stock-collateral stablecoin (Nest), tiered CDP markets with a stability pool (Arrow, Robinhood Chain) and a 15-minute stock-dividend engine (The Index, Robinhood Chain) — and adds perpetuals margined in the stablecoin.
Each collateral asset is an isolated market with its own LTV, liquidation threshold and debt cap. Deposit collateral, mint fUSD up to collateral × price × LTV. Positions are not cross-collateralized.
debt × 0.03 × Δt / year. Repayments hit accrued fees first, then principal.collateral value × liquidation threshold ÷ debt. Below 1.0 the vault is liquidatable.| Tier | Assets | Max LTV | Liq. threshold |
|---|---|---|---|
| Stable | USDG | 90% | 95% |
| Crypto | ETH | 75% | 82% |
| ETF | SPY, GLD | 55% | 65% |
| Tier 1 | HOOD, NVDA, AAPL, GOOGL, META | 55% | 65% |
| Tier 2 | TSLA, COIN, MSTR | 40% | 52% |
USDG ⇄ fUSD at 1:1, zero fee, no debt created. fUSD → USDG redemption is available while the PSM holds idle USDG. Oracle: the exchange tape (regular and extended hours) for every price, refreshed every 15 s; USDG pinned to $1.
A share token. Deposit fUSD, receive shares at the current price-per-share; the pool accretes toward a 6% APY target, funded from borrower stability fees first and the surplus buffer second. Unstaking burns an exit fee equal to one day of target APR (≈0.016%).
When a vault's health factor drops below 1.0 the stability pool burns fUSD equal to the debt and receives collateral valued at oracle × (1 − 5%), credited pro-rata to depositors. Any remaining collateral returns to the vault owner. If the pool is too shallow the surplus buffer (accumulated fees) absorbs the shortfall.
All protocol revenue — origination, stability, perp taker/liquidation fees — accrues to a pot. At each quarter-hour: 40% buys a tokenized stock at oracle price and is airdropped to $FOLIO holders pro-rata to balance; 30% is added to locked FOLIO liquidity; 30% is allocated to $FOLIO buyback & burn (V2), tallied in fUSD and executed from the treasury at market — the burn is a permanent reduction in circulating supply. Stock rotation: NVDA → AAPL → GOOGL → HOOD → META → SPY. Holder weight is the real $FOLIO balance read on Robinhood Chain (ERC-20 balanceOf, public RPC with failover) for every connected wallet, refreshed every two minutes and on demand. Each epoch pins the chain block and emits a SHA-256 receipt over the payout — see /api/dividends and /api/holder?w=.
rate = clamp(±0.1%, k × (longOI − shortOI)/(longOI + shortOI)); the heavier side pays.Each wallet's real $FOLIO balance (Robinhood Chain balanceOf, refreshed every 2 minutes) maps to a tier by share of total supply. The tier multiplier applies to sfUSD APY, term-lock APY and Season points.
| Tier | Share of supply | Multiplier | sfUSD APY |
|---|---|---|---|
| Paper | — | 1.0× | 6% |
| Bronze | ≥ 0.01% | 1.5× | 9% |
| Silver | ≥ 0.1% | 2.0× | 12% |
| Gold | ≥ 0.5% | 2.5× | 15% |
| Diamond | ≥ 1% | 3.0× | 18% |
Mechanically, sfUSD stays a single share token: a staker's boost above 1× is minted to them as additional sfUSD shares every tick (value × 6% × (mult − 1) × Δt / year), funded from the surplus buffer.
Fixed-term fUSD deposits (min 10 fUSD): 30d 12% · 90d 20% · 180d 30% · 365d 50% base APY × tier multiplier, accrued continuously until maturity. Claim any time after maturity. Early exit returns principal + accrued yield minus a 10% principal penalty, burned (removed from fUSD supply).
Airdrop pool = 5% of $FOLIO supply, split pro-rata to points at season end. Points accrue every 3 seconds: term-locked 3/$/day (×1.3 / 1.6 / 2 for 90 / 180 / 365d), stability pool 2, open debt 1.5, staked 1; perp trades 0.5 per $100 notional; dividends 25 per $ of stock received; daily check-in 10 with a streak bonus of +5%/day to +50%. All points × tier multiplier. Referrals: referee +50, referrer receives 10% of the referee's points in perpetuity (/app?ref=0x…). Endpoints: /api/season?w=, POST /api/lock, /api/unlock, /api/checkin, /api/ref.
The burn share is not fixed. At the top of each epoch the protocol compares the $FOLIO market price (DexScreener, sampled every 5 min) to its 7-day average: share = 30% + 30% × clamp((avg − px) / avg ÷ 20%, 0, 1). At or above the average: 30%. Twenty percent below: 60%. The extra comes out of the LP share (stock airdrop stays 40%). The share used is recorded in each epoch receipt. Live at /proof.
30% of every epoch's revenue plus every early-exit penalty is tallied to the burn ledger (burn.fusd, and burn.folio at the DexScreener market price when available). Visible on the Dividends tab and landing folio card.
/proof is the transparency page: treasury balances read from Robinhood Chain, every tx-verified deposit, fees collected vs. stock paid / LP / burn, every block-pinned epoch receipt, the live dynamic-burn meter, and an explicit table of what is on-chain versus protocol ledger. JSON at /api/proof.
The protocol token on Robinhood Chain. Holding it is what earns the 15-minute stock dividends. Nothing here is financial advice; overcollateralized lending and leveraged trading can lose money.