The Most Powerful Women in Banking

Mary Callahan Erdoes is not as much of a household name as Warren Buffett or Jamie Dimon, but as J.P. Morgan Asset Management's chief executive, she has undeniable influence on Wall Street.

After the U.K. vote in June to leave the European Union, Barbara Byrne had one message for her employees at Barclays: Pay close attention to how it plays out.

"As women, we need to remind ourselves to have an 'opt-in' attitude," said Abigail Johnson, President and CEO of Fidelity Investments. "Career downturns happen to everyone and we must remember to treat them as opportunities to change how we work or try something new. That is what shows our true mettle."

Since joining Schwab in September 2010, Marie Chandoha has made it one of her personal missions to foster an environment that promotes diversity.

It was one thing for Margaret Keane to lead the retail finance arm of GE Capital before it spun off from its parent company, General Electric. But completing the separation from GE in November 2015 was a wake-up call.