Write the price.
Fund the right.

Call Desk turns a Stock Token into a fully collateralized call with a fixed USDG premium, strike and expiry.

Writer locks the Stock Token
1 SPY
Buyer funds the premium
Strike 500 USDGPremium 18 USDGExpiry Friday
COLLATERAL LOCKEDPREMIUM FUNDEDSTRIKE FIXEDEXPIRY ENFORCEDCOLLATERAL LOCKEDPREMIUM FUNDEDSTRIKE FIXEDEXPIRY ENFORCED

The promise starts with the asset.

The writer deposits the exact collateral before the offer becomes available. The buyer pays the quoted premium directly to the writer.

01

Writer fixes the terms

Choose the Stock Token amount, premium, USDG strike, expiry and an optional eligible buyer.

02

Buyer activates the right

The premium settles when the buyer purchases. The collateral remains inside the contract.

03

One ending settles

The buyer exercises before expiry, or the writer reclaims the collateral after the deadline.

Two endings.
No unfunded promise.

The contract never needs a price oracle. The buyer decides whether to exercise the fixed terms before the deadline.

EXERCISE

Buyer pays the strike.

500 USDGWriter
1 SPYBuyer
EXPIRE

Writer takes the asset back.

1 SPY

The funded premium remains with the writer.

Set the terms onchain.

Call Desk is live on Robinhood Chain Testnet while the mainnet deployment is being prepared.

Use the testnet app