This pool allows you to deposit ETH to write calls based on an algorithmically determined strike price. Your yield is generated from premiums paid by call options buyers and performance of ETH during the epoch. Ribbon's Theta vaults automate out of the money covered calls on a weekly basis and reinvests the premiums back into the strategy to compound depositor yields over time. Your deposited principal is subject to loss in case of a market upswing as you are selling covered calls. In this case, your upside will be capped and you may be relatively worse off than simply holding spot.