From what's been reported, SVB had money tied up in mortgage backed securities and T-Bonds (not bills) which take years to mature. T-Bills are different than T

From what's been reported, SVB had money tied up in mortgage backed securities and T-Bonds (not bills) which take years to mature. T-Bills are different than T-Bonds. T-Bills mature in weeks up to 1 year (4, 8, 13, 26, 52 week terms). They're a good way to assign your money you can't risk (like next month's payroll) while still earning interest on it and having access to it when you need it.