That's my question. I understand how SIPC protects the cash in my brokerage account, and I understand how I can use that cash to generate returns. And brokerages have offered "cash management accounts" with checks and ATM cards for years.
I don't understand what a "checking account" is that guarantees 3% interest and is covered by SIPC instead of FDIC.
I don't understand what a "checking account" is that guarantees 3% interest and is covered by SIPC instead of FDIC.