The holding company for Union Bank — itself a unit of the Japanese giant Mitsubishi UFJ Financial Group — is on a mission to double its size and become one of the nation's 10 largest banks. Under Steve Cummings, its first-ever American CEO, MUFG Americas has expanded middle-market lending and amassed $3 billion of consumer deposits through its new online bank. Is a splashy acquisition next?

Extending this functionality into corporate cards has the potential to make the commercial payments process more seamless and secure, writes Russell Bennett, chief technology officer at Fraedom.

CEO Michael Corbat all but called out his counterparts at other banks to join Citigroup in setting limits on what kinds of firearms businesses it is willing to serve. The response was muted, but the pressure to act is tremendous.

The bank, which has branches in eight states and operates a nationwide real estate business, said that the proposed new name, Bank OZK, would better reflect its geographic reach.

CEO Tim Sloan was paid $17.4 million, though he was denied a cash bonus, as the San Francisco bank continued to contend with scandal fallout.

As it expands to the West Coast, the bank will first target car dealers at which it is already an indirect consumer lender.

The online giant has succeeded in disrupting every area of retail, but in banking it faces a high barrier to entry and fierce determination from banks like Citizens Financial and Bank of the West to keep upping their games.