gwraigty
Thinks s/he gets paid by the post
You don’t need to split into three different brokerages accounts for this! CDs purchased through a brokerage are offered by many FDIC institutions, and you just need to spread your CDs among multiple offering banks such that holdings don’t exceed $500K at any one bank.
A jointly owned CD is FDIC insured up to $500K as are joint holdings at any bank.
^^^
This! Brokerages have CDs available for purchase from multiple banks all the time.