NEW YORK & TOKYO--(BUSINESS WIRE)--Jefferies Financial Group, Inc. (NYSE: JEF) ("Jefferies†) and Sumitomo Mitsui Financial Group, Inc. (NYSE: SMFG) ("SMFG†), Sumitomo Mitsui Banking Corporation ("SMBC†), and SMBC Nikko Securities Inc. ("SMBC Nikko†) (collectively, "SMBC Group†) announced today that they are significantly expanding their Global Strategic Alliance. SMBC Group and Jefferies initially entered into a Strategic Alliance in 2021 to collaborate on future corporate and investment bankin. ...