Normally contract law. You select an account offering with different procedures for liquidation. A demand deposit or checking accound has little or no notice.

Normally contract law. You select an account offering with different procedures for liquidation. A demand deposit or checking accound has little or no notice. A money market may take a day or so for underlying assets to be exited. CoD's and such typically don't even have the option for withdrawal. You just have to wait for maturation. Point is, you know this when you open the account. They should take great pains to ensure you understand the instrument... And to manage things appropriately, which apparently, SVB did not.