What can go wrong,
before it does.

If your side loses, you get your deposit back and none of the interest it earned. Over a long market that is a real cost: money that could have earned elsewhere earned nothing for you.

The vault earns what its yield token pays — a few percent a year at best — and that rate moves. It can fall to zero. Every number on this site that depends on yield says "about" for that reason.

Deposits are held as yield-bearing dollar tokens such as tokenised Treasury bills or lending tokens, issued by third parties. They can lose value, be frozen by their issuer, stop being redeemable or change their terms. If the token fails, the deposit can fail with it. Some tokens are not offered to US persons.

Each pool follows the resolution of the Polymarket market it mirrors. If that resolution is wrong, disputed or late, the pool follows it anyway. If a market is voided, deposits are returned and the interest is shared back pro rata.

A longshot can pay many times the normal interest, but it is a multiple of a small number. Nobody gets rich on interest, and nobody should deposit expecting to.

The program will be new and is not audited. Smart contracts, wallets and blockchains can fail. Solana can slow down or halt. Whatever keys the team holds will be listed in full on the security page before launch.

Using coffr may be illegal or taxed where you are. Checking that is your responsibility. Nothing on this site is advice.