A maturity is the point

Which of these lines has a maturity?

• USDC supplied to a lending pool at a variable rate
• Staked USDe, which you can start to unstake at any time
• A 26-week Treasury bill

A dated claim is due to repay you on 26 November. What does that date tell you?

• That you will certainly be paid in full on 26 November
• When payment is scheduled; whether it arrives depends on who owes you and what it pays in
• That its price can't change before 26 November