In the second month, a balance tranche is established based on the lowest positive daily closing balance level of the previous month, and an
enhanced rate is applied to those balances. Balances above that level receive an overnight rate.
Balance tranches are reset each month using the same process.
Additional rate enhancements are applied after three months and six months. These tranches are established based on the lowest daily
closing balance for the previous three months and six months.
Group liquidity accounts.
Group balance smooths out account-level volatility and enhances the value of global balances.