BBN and GBAB are taxed as ordinary income and pay 5 and 5.5%. They are nearly the same so I’d go with GBAB.
The others are taxed at the lower dividend rate, not as ordinary income, and all well over 2.5%. They could all go down long-term, but I don’t think that’s terribly likely. The main risk of them going down is probably President Biden does a big corporate tax increase. But I think that risk is mostly already reflected in their prices.
If you want complete risk free gains, it isn’t going to work. But if you have 2m+ net worth and are playing with 100-150k, I think you want positive expected return, not risk free return.
