Sandclock's metavaults charge a performance fee over the yield generated. The fee is owned by QUARTZ holders.
However, instead of using it for immediate value accrual, this capital is redeposited to the protocol as a SPONSOR and thus, the yield generated by this capital is used to boost all deposits, thereby creating a positive feedback loop, attracting more capital, and therefore, more fees.
In the future, if the DAO desires, a rageQuit() function can be implemented, where burning QUARTZ will withdraw a proportional amount of the treasury to the account owner.
Other value accrual mechanism will be also be considered, pending a DAO vote.