EX-99.906CERT CERTIFICATION PURSUANT TO RULE 30A-2(b) UNDER THE 1940 ACT AND SECTION 906 OF THE SARBANES-OXLEY ACT I, John R. Jones, President of AB Funds Trust (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: February 23, 2005 /s/ John R. Jones ------------------- ------------------------------------ John R. Jones, President (principal executive officer) I, Jeffrey P. Billinger, Vice President and Treasurer of AB Funds Trust (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: February 23, 2005 /s/ Jeffrey P. Billinger ------------------- -------------------------------------------------- Jeffrey P. Billinger, Vice President and Treasurer (principal financial officer)