While MB Trading is wholly-owned by Ally Invest, please make checks payable to our clearing firm, "Apex Clearing Corporation". Include your 8-digit MB Trading account number in the memo field, and mail the check to Ally Invest at:
Ally Invest Securities
PO Box 49050
Charlotte, NC 28277-3432
Checks made payable to MB Trading, Ally Invest, or any other party other than Apex Clearing Corporation will be returned.