06 · Risks

Risks

Read this one properly. It is the page that costs us something to write.

No independent audit

The contract is covered by unit tests and by fork tests against the real pools, and it was written carefully. None of that is an external security review. Bugs survive careful authors; that is the entire reason audits exist. Until a report is published here, treat the code as unreviewed and size your position as if something could go wrong — because it could.

Smart contract risk does not go away after an audit either

An audit lowers the odds. It does not remove them, and no serious protocol claims otherwise. The vault is not upgradeable, which is a deliberate trade: nobody can quietly change the rules on you, and nobody can patch a bug in place either. If a flaw is found, the response is to tell you and to stop routing new money through it — your withdrawals keep working regardless, because nothing can pause them.

Stock Tokens are somebody else's promise

Crumble buys tokens that represent shares. It does not issue them, custody the underlying, or stand behind their value. Whatever the issuer does — freeze a transfer, change the terms, fail to honour a redemption — flows straight through to what you hold. Read the issuer's own terms before deciding how much of this you want.

Prices come from pools, not from an exchange

Every figure in the app is derived from the Uniswap v3 pool price at that moment. A thin pool can sit some distance from the price you would see on a stock ticker, and that gap is what you actually trade at. This is most visible on small round-ups, where a few cents of slippage is a large share of the amount.

Liquidity can thin out or vanish

A pool that is deep today may not be tomorrow. When a leg cannot be filled at your minimum, it is skipped and the share comes back to you in the token you paid with — which is the safe outcome, but it also means you did not buy the thing you meant to buy. If a pool dries up while you are holding that stock, selling it may cost you more than the screen suggests.

Rounding up is still spending

The change is small by design, and that is exactly what makes it easy to stop noticing. Every round-up buys an asset that can fall. Doing it on every trade for a year adds up to a real position, taken without ever deciding to take one. That is the appeal of the product and also its sharpest edge.

Network and key risk

Robinhood Chain is a young L2. A sequencer outage stops you transacting until it comes back, on any protocol running there, including this one. And as always: lose your keys and nothing in this contract can help you, because there is no one holding a copy.

What we do not claim

• No return, yield or performance is promised, implied or targeted.
• Nothing here is investment advice, and nobody at Crumble knows your circumstances.
• We do not guarantee the availability of the app, the chain, the pools or any Stock Token.
• Availability and legality vary by where you live. That question is yours to answer.

If you have read this far, the one thing worth taking away is the shape of the thing: your keys, your withdrawal, our code — unaudited for now — and somebody else's stock tokens at the end of the chain. Decide with that in front of you.