The Most Powerful Women in Banking

For Liz Myers and team at J.P. Morgan, the first half of the year was dominated by large IPOs, with the firm underwriting 20 transactions that raised more than $1 billion apiece, including the $5 billion offering from the insurance subsidiary of Banco de Brazil.

With its announced purchase of the Credit Suisse Customized Fund Investment Group, Grosvenor Capital Management will not just nearly double its assets under management, it also will gain the services of one of the most high-profile names in private equity and fund-of-funds management in Kelly Williams.

With a prime role in two global exchange mergers last year, Caroline Silver has no problem with name recognition in the sector. As Michael Overlander, the CEO of derivatives broker Sucden Financial told Bloomberg last year, "Her name should be changed to Caroline Gold."

In addition to being an industry giant with many opportunities to run large business lines, Wells Fargo takes a studied approach to leadership development, with special emphasis on women and other diversity candidates who have been traditionally underrepresented in the financial services sector.

After buying Marshall & Ilsley in 2011, BMO Financial Group's U.S. arm faced a full plate of challenges. But with the guidance of Justine Fedak, head of brand, advertising and sponsorships in North America, BMO Financial and its BMO Harris Bank subsidiary took their message straight to Milwaukee.