CEO Charlie Scharf said in a letter to Congress that a review is underway to determine how many customers were affected by confusion over monthly fees and that the bank will begin issuing refunds next year.

The number of fintech startups has declined rapidly; several banks are using customer data to help customize retail offers.

The number of fintech startups has declined rapidly; several banks are using customer data to help customize retail offers.

Scott Powell, who resolved numerous regulatory problems as the head of the Spanish bank's U.S. operations, will face similar challenges at scandal-plagued Wells. As the bank's chief operating officer, Powell will report to CEO Charlie Scharf, a former colleague at JPMorgan Chase.

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One-time expenses at a handful of large banks marred an otherwise solid quarter, while higher charge-offs point to possible credit-quality concerns.

Profits dipped 7% from a year earlier but banks still earned nearly $60 billion, the agency said in its Quarterly Banking Profile.

The bank is testing the emerging technology with IBM in an effort to speed up risk analysis and derivatives pricing.

Rep. Katie Porter, D-Calif., wants details about refunding "hundreds of millions of dollars" in fees improperly charged on checking accounts. Wells has acknowledged the potential problem but hasn't estimated how much it owes.

Banks’ third-party technology providers may face increased scrutiny; Rep. Porter wants more data about "confusing" checking account fees.