Yield on digital dollars, engineered for risk first.
Joulity runs a diversified book of stablecoin strategies across Base and Ethereum. A real-time risk engine watches every dollar it holds. Choose between steady senior income and higher junior returns, both through one token: jUSD.
Stablecoin yield is easy to find. Keeping it is the hard part.
Most high yields on dollars hide a risk: a weak peg, a thin pool, a fee that eats the return. Joulity is built to see those risks first, and to earn only what is left after them.
Diversified by design
Capital is spread across fixed-rate, liquidity, savings-rate and market-neutral strategies. No single protocol, coin or venue decides the outcome.
Guarded in real time
Every stablecoin in the book is checked every five minutes against live market quotes and pool flows. Exposure is cut before a depeg, not after it.
Reported honestly
Every dollar of result is split into income, price effect and costs. Fees and gas are counted from day one, so the number you see is the number you keep.
One vault. Two ways to hold it.
jUSD is the share token of the Joulity vault. It comes in two classes that share the same portfolio but not the same risk. Senior holders are paid first. Junior holders absorb the first loss, and in exchange they keep the excess yield.
jUSD Senior
jUSD-SFor treasuries, businesses and anyone who wants dollar income that behaves like a dollar. Paid first and protected by the junior buffer.
- Target yield~5% / yr, paid first
- Loss positionProtected by junior capital
- Return profileSteady, predictable
- Designed forIdle USDC, treasuries
- FormTokenised vault share on Base
jUSD Junior
jUSD-JFor investors who understand the book and want more of its upside. Receives all yield above the senior target and takes the first loss.
- Target yieldVariable, 12–20% / yr
- Loss positionFirst loss
- Return profileGeared to the book
- Designed forExperienced DeFi capital
- FormTokenised vault share on Base
How the yield flows
Illustration for one year, gross book yield of 10%, with 70% of capital in Senior and 30% in Junior.
Five families of return, each with a clear source.
We only run strategies whose yield we can explain: who pays it, why, and what would make it stop.
Fixed-rate income
FixedPrincipal tokens on Pendle lock in a known rate to maturity. The book rotates to the best risk-checked markets as positions mature.
Stable liquidity
Fees + rewardsLiquidity in deep, dollar-only pools earns trading fees and incentives. Pools are re-ranked weekly and switched only when it is worth the cost.
Protocol savings rate
Base layerA conservative anchor position in the Sky savings rate, read directly from the chain. Low return, high liquidity, simple to exit.
Market-neutral carry
HedgedHedged positions collect the difference in funding rates between venues. Both legs offset price moves; the spread is the return.
Opportunistic
Event-drivenWhen a quality stablecoin trades briefly below its value, the book can buy the discount and hold it back to par, only when the risk engine allows it.
What we avoid
DisciplineNo leverage loops, no unaudited forks, no yields we cannot source. Rates far above the market are treated as a warning, not an opportunity.
Rules first. Returns second.
Every position in the book passes the same framework before it is opened and every hour while it is held. The rules are applied by the system, not by mood.
Coin admission
A stablecoin enters the book only with deep on-chain liquidity, a transparent backing model and a clean peg history.
Exposure limits
Hard caps per strategy, per protocol, per chain and per pool. The book never becomes a large share of any market it uses.
Yield sanity check
Rates far above the market are excluded automatically. Yield that cannot be explained is treated as hidden risk.
Depeg response
Watch: stop adding exposure. Alert: reduce and exit. Each step is predefined and triggered by the risk engine.
Liquidity buffer
Part of the book stays in positions that can be redeemed quickly, so withdrawals do not force sales at a bad price.
Cost discipline
A position is changed only when the expected gain clearly exceeds the full cost of moving: fees, gas and slippage.
A stablecoin is only as good as its last trade.
The Joulity risk engine reads real executable prices and on-chain pool flows for every dollar token the book can hold. It sees a depeg forming before the price chart does.
- Executable price, not quoted priceEach coin is priced at a realistic trade size, so thin markets cannot hide.
- Pool flow signalsWhen holders rush for the exit, pools go out of balance. The engine tracks it continuously.
- Automatic responseCoins move from OK to Watch to Alert. Strategies stop adding exposure, then reduce it.
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Built so funds can only go one way: back to you.
The vault is non-custodial. Strategy contracts can act on the capital but cannot send it anywhere except back to the vault. Every control below is published, and nothing goes live before it is in place.
- Restricted executorsStrategy contracts have no destination parameter; capital can only return to its owner.In place
- Verified source codeContract source published and matched on-chain via Sourcify.In place
- Independent auditFull review of the vault and tranche contracts by an external firm.Before launch
- Multisig and timelockNo single key; every admin change waits in a public timelock.Before launch
- Deposit capsCapacity grows step by step with the track record, never all at once.At launch
- Proof of reservesVault holdings readable on-chain at any time.At launch
- Emergency pauseNew deposits can be stopped instantly; withdrawals stay open.At launch
Every result, explained in three lines.
Finance teams should not need to read smart contracts to understand their returns. Every Joulity report breaks the result into what was earned, what moved, and what it cost.
- Income: fees, rewards and fixed yield actually received
- Price effect: mark-to-market moves, shown separately
- Costs: trading fees, gas and slippage, never netted away
Proven in public before it holds your money.
Public track record
All strategies run on live market data with full cost accounting, visible to anyone.
Vault on Base
A capped mainnet vault with the strategies that earned their place.
jUSD Senior & Junior
Tranched shares after independent audit, with mint caps and on-chain proof of reserves.
Risk API
The stablecoin monitor opened to protocols, wallets and treasuries.
Watch the book earn, before you commit a dollar.
Every position, every fee and every daily result is published on the live dashboard.