Coffer

How this works

Coffer is a front end. It routes a buy of a Treasury-bill fund into your wallet and then measures what that fund actually paid. It never holds your money.

What you hold

You buy iShares 0-3 Month Treasury Bond, ticker SGOV, contract 0x92FD66527192E3e61d4DDd13322Aa222DE86F9B5 on Robinhood Chain. The name on chain must end with the exact suffix “ • Robinhood Token” and stay under 80 characters. A long lookalike that merely contains those words is rejected.

Dollars go in as USDG. The fund units come back to the same address you signed with. There is no vault and no project account in the middle.

Who issues it

Stock tokens on this chain are issued by Robinhood Assets (Jersey) Limited as tokenized debt securities. They are not bank deposits. They carry no deposit insurance and no shareholder rights. They are not registered in the United States and are not offered to US residents.

How the rate is measured

Income does not arrive as extra units. It arrives through a multiplier: the raw balance stays still while the number of underlying shares behind one unit grows. The dollar value is:

dollars = raw balance × multiplier × consensus price

The annual rate is the multiplier growth, raised to 365 over days elapsed, minus one. Under seven days we show measuring.

Measurement for this product started 7 September 2026. The public rate will appear once seven days have passed.

How the price is read

We take a liquidity-weighted average across pools deeper than $50,000 where SGOV is the base asset. Thin pools and inverted pairs are ignored. If that feed is down, deposits and withdrawals stop. We do not guess a price.

Before you sign, the passbook states what you put in, what you receive, and the difference. A single operation may not exceed 0.5% of current pool depth. On a $4.2 million pool that is about $21,008. Larger amounts are refused with that number on screen.

Market hours

Operations run weekdays, 9:30 to 16:00 Eastern, except US market holidays. Outside those hours the passbook stays closed and names the next open. The underlying fund is priced in the US session. Trading against a stale print is how you overpay.

Risks

The bills are short. The pool is not. Exit liquidity on this chain is a few million dollars. A large withdrawal moves the price, which is why the ticket is capped.

Pools of the same asset on this chain have diverged by as much as 5.71%. That is why we buy and sell at the consensus of deep pools, not at the loudest quote.

Coffer does not take custody. If you lose the wallet, we cannot restore the bills. There is no $COFFER reward mixed into the Treasury rate. Mixing a homemade token into this number would destroy the only reason to trust it.