Mizuho Financial Group Inc. efforts to expand its global M&A advisory business will likely be boosted by the policies of the new Donald Trump administration.

Masahiro KiharaThe chief executive of Mizuho, ​​Japan’s third-largest lender, expects President-elect Trump to make regulations more business-friendly. That could help the company, which is seeking to increase its presence in U.S. financial markets and last year acquired investment bank Greenhill & Co.