It's interesting to see how other people think about these things.
For me I see the reinvestment risk as minimal. Break your money up in 4 chunks. Have purchases staged in1wk increments on 1 month treasuries.
How much do you really think the rate is going to move in a single week?
Even if there's some crazy emergency panic set rates to zero event, I'll only have 1/4 or that capital tied up and it will be tied up for a single month.
Compare that to buying a CD at a bank that's being required to maintain a zero percent reserve, and who is insured by an organization that has shown itself willing to raid the insurance funds to bail out those who weren't covered but happen to be rich and well connected. I think that in a bank collapse I would have the potential to be locked out of all that capital for significantly more than one month.
I suppose I just don't see the point of buying the crappy part of an inverted yield curve. I want to be compensated if I'm locking up my money.
IMO, if they significantly cut rates, inflation is going to spike again. In that situation I think I'd rather have stocks or I bonds.
I also think you have to compare bonds to everything else. A company like Eli Lily has been around for longer than the federal reserve.
I don't see a CD in a regional bank I've never heard of, that is willing to pay above market rates, as a particularly safe investment.
But I also think you had to be a crazy person to buy a 30 year treasury at 1.5%.