FAQ
The basics
What is Scrub?
Scrub runs automated trading on perpetual futures venues. There are two products: a delta-neutral vault that credits a 15% APR daily, and our own AI model that acts on its own signals and trades. The vault takes USDC on Arbitrum or USDt on Kava; the farm vaults take USDC.
Which product should I read about?
If you want a steady rate without a price view, read The vault. If you want the bot's own trading result and you accept drawdown, read The bots.
Which venues do you use?
Hyperliquid, Lighter, RISEx, Arcus and dYdX. More can be added — the list is expected to change, and which of them is live at any moment is not published. See Venues.
Deposits
How do I deposit?
Connect your wallet in the app, choose the vault, and deposit its asset. You need enough of it to clear the vault's minimum, and an allowance to the vault.
Does my deposit earn straight away?
No. It is recorded against your wallet as pending, and it starts earning when the batch it belongs to is priced and shares are minted. Pending deposits earn nothing.
Why do deposits get batched?
So that everyone depositing at the same time gets the same share price. Otherwise whoever deposited a moment earlier or later would get a better or worse deal for no reason.
Is there a minimum?
Yes, and it differs by vault. The app shows the live minimum before you sign anything.
Is there a cap?
The delta-neutral vault has no cap — nothing limits its size and there is no queue to get in. The AI Trading farm vaults are capped, and a farm vault at its cap stops accepting deposits. Caps are deliberate: past a certain size, extra money earns nothing and just waters down what existing holders own.
Withdrawals
How long does a withdrawal take?
On the delta-neutral vault, the seven-day delay applies. On the delta-neutral vault a withdrawal is priced in a batch and cannot be paid until a seven-day delay has passed — the only exception being the emergency early-payout route we control, which we use to fix something that has gone wrong rather than to move anyone up a queue. On the farm vaults the delay is about a minute, so an unpaid request there is a delay rather than a wait. It can take longer than that: exchanges process withdrawals in their own time, funds sometimes have to be moved between chains, and markets are not always deep enough to close a trade quickly. We do not promise a maximum.
Can I cancel a withdrawal request?
It depends on the product. On the delta-neutral vault, no — your shares are locked when you request and the only way they are released is by being paid. On the farm vaults, yes — the wallet that made the request can cancel it on-chain, which unlocks the shares.
Why is my withdrawal not showing as paid yet?
Common reasons: on the delta-neutral vault it is still inside the seven-day delay before it can be paid, or the payout batch could not be funded at that moment. One case differs by product. On the delta-neutral vault, a request that would pay out no more than the $1 exit fee makes the contract reject the whole batch — it is not skipped and it does not keep a place in a queue, so tell us rather than waiting on it. On the farm vaults, that request is skipped and paid in a later batch.
What price am I paid at?
You are paid at the share price when the payout is processed, not the price on the day you asked. On the delta-neutral vault the request must also clear a seven-day delay before it can be paid (aside from our emergency early-payout route); on the farm vaults the delay is about a minute. See Deposits, withdrawals and shares.
Returns and fees
What is the APR?
The vault credits 15% APR, every day, on-chain. It is a rate we set rather than one the contract guarantees: it can be reduced or stopped, and the trade underneath has to keep earning enough to fund it. The bots have no rate at all — their return is whatever the trading makes or loses.
Where does the return actually come from?
For the vault: a 15% APR we set and credit daily. The trade underneath earns funding, and the credit is not computed from it. For the bots: the bot's trading decisions, less what it gets wrong. The bots trade perpetual futures and they are not hedged. Both are explained on their own pages.
How safe is the vault?
The vault holds both sides of the same trade, so direction is close to a wash, and the rate you are credited is set by us rather than by the day's trading. Like anything in this sector it depends on exchanges doing their job.
What are the fees?
They differ by product.
- The delta-neutral vault: $1 flat on entry and $1 flat on exit. Nothing else. No performance fee, no management fee.
- The AI Trading farm vaults: the same two $1 charges, plus a 10% performance fee on profit, charged only above the high-water mark — so a fall and a recovery back to a level already charged costs nothing.
Is 10% the most I can pay on the farm vaults?
No. The performance fee is paid in shares, and those shares stay in the vault and grow with it rather than being redeemed. So the better the run, the more the fee shares are worth, and the total cost to a depositor climbs above 10%. The 10% is the rate charged on each new high, not a ceiling on what a long run costs you.
Is the performance fee taken on my capital?
No. It is taken on profit, and only on profit above the highest level the vault has already charged on. If the farm vault makes nothing, it takes nothing. If it falls and recovers to a level it already charged at, it takes nothing on the recovery. This is the farm vaults' fee; the delta-neutral vault has none.
The bots
What are the farm vaults?
AI Trading Arcus Farm and AI Trading RISEx Farm. You deposit USDC and the bot trades it.
Are the bots hedged?
No. They take direction deliberately, so a bad month is a fall in value rather than the small steady payment the vault collects.
What happens when a bot hits its drawdown limit?
It closes its positions and stops, then waits until conditions are clean before starting again.
What if the model stops working?
That is the main risk. A model can stop working and the book will keep trading. Nothing announces it. This is why the loss limit and the position limits exist, and why we say past results are not a forecast.
What if your system goes down mid-position?
There are two safety nets: one in our own system, and one placed at the exchange itself, so it still works if our system goes down. Neither one helps if the exchange is down.
Points
How do points work?
The exchanges run points programmes. Our bots trade, the exchange counts the activity, and 70% of what accrues goes to depositors. See Points.
Do points have a token value?
No announced one, and we cannot give you one. A points programme is not a promise of a launch.
Custody and contracts
Who holds my money?
Capital is moved to the venue where the position lives and traded from an account we operate. The vault contract holds the rules and the record of who owns which shares. It does not hold your deposit. So you are trusting us to hold and trade that capital, and trusting the venue not to fail while it does.
Can the contracts be changed?
They are upgradeable. That lets us fix things without a migration, and it means the rules can change after you deposit. Treat that as the largest technical risk in the product.
How do I get support?
Use our official channels, listed on Links.
Who cannot use Scrub?
People in jurisdictions where this is not permitted. Venue points programmes also exclude certain regions, and that is the venue's rule, not ours.
Is this financial advice?
No. Nothing here is financial advice, and none of it is a promise. If you need advice, talk to someone qualified.