How it works
Understanding "Earnings" on SuperFund
USDC SuperFund (Base) is simply a savings app that guarantees the best yield with a low risk profile.
As a user, you only need to deposit USDC and watch your capital grow as interest and rewards are all compounded and added to your position on an hourly basis.
Calculating APY
USDC SuperFund uses a “Yield Ramp-up” mechanism, which is a feature borrowed from Euler Earn. This simply means that when yield is earned by the vault, it isn’t paid out all at once. Instead it is gradually distributed over a period of time (typically from 7-days).
This is a fair yield distribution model that creates a smooth, stable return curve and protects against sudden rate spikes or dips.
We encourage users to think about the vault's APY as follows:
Main Vault APY: What the vault has earned on average over a defined past period
Your APY: What you are earning based on your deposit time
Projected APY: A forward-looking estimate based on current strategy allocations.
How SuperFund Rebalances Capital
Key takeaway: Every hour, an off‑chain SuperFund Keeper network checks which lending pools are paying the best net rate. It tweaks each strategy’s allocation points and then—only if it improves the outcome—calls the vault’s rebalance() or simply harvest() to refresh earnings. One atomic on‑chain transaction takes care of everything.
Hourly Rebalance SuperFund Keeper network (off‑chain)
Fetch live data – pulls the latest APY and total size for every supported lending pool.
Pick the best mix – runs a quick simulation, nudging small chunks of capital until moving the next chunk would no longer raise the blended APY.
Adjust allocations – updates the vault’s allocation points for each underlying strategy so the smart contract knows the new target weights.
Execute – triggers one of two calls:
rebalance()if funds actually need to move between pools;harvest()if no shift is required, but earnings need to be realised.
Vault Contract (on‑chain)
Atomic execution – whether it’s a rebalance or a harvest, everything happens inside one transaction; if any step fails, the whole thing reverts.
Quick Example (hourly steps t → t + 5)
t
0 USDC
—
0 USDC
—
User deposits 1 M USDC into the vault
t + 1 h
1 M USDC
10 %
0 USDC
8 %
SuperFund Keeper network sends full deposit to the highest earner (A)
t + 2 h
0.6 M USDC
9.1 %
0.4 M USDC
9.0 %
A’s rate dipped as balance grew; SuperFund Keeper network shifts 400 k to B until rates almost match
t + 3 h
0.4 M USDC
9.3 %
0.6 M USDC
9.3 %
B’s headline APY rose; SuperFund Keeper network re‑balances to equalise again
t + 4 h
0.4 M USDC
9.2 %
0.6 M USDC
9.2 %
No significant change; SuperFund Keeper network harvests interest only
t + 5 h
0 USDC
—
1 M USDC
9.0 %
A’s rate fell further; SuperFund Keeper network moves remaining funds to B
After t + 5 h the marginal and blended APY are maximised for the current market; the next hourly cycle will evaluate again.
Key Points on Rebalancing
Hourly tune‑ups – yields refresh 24× a day without any action on your part.
Hands‑free – you never sign transactions or pay gas; the vault handles it.
Fully transparent – every rebalance or harvest is on‑chain, so anyone can verify where the money sits and how often it moves.
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