Originally Posted by bawr

The cash in my Fidelity CMA seems to get randomly allocated to the participating banks (at the moment, five have money allocated to them). There does not seem to be a "primary" bank assigned to the account. Fidelity's ATM cards are issued by PNC, which is not of one the deposit sweep banks.

I have more than 600 times as much money in my Fidelity accounts as my Schwab checking account, yet both have assigned a daily limit of $1,000 to my ATM cards.