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.

Thanks

No, SVB invested in long term T-Notes or T-Bonds, not short term T-Bills. T-Bills have much less interest rate risk, because they have a maximum 52-week term.

Thank you, sorry I was not familiar with the diff between T-bills and T-Bonds, now I know!