Goldman Sachs Group posted a surprise jump in its trading business, rounding out a stellar quarter for Wall Street’s biggest banks.

The San Francisco bank reported a 26% increase in its third-quarter earnings, thanks to robust single-family, multifamily and commercial real estate loan activity in New York, Boston and its home city.

Banks, credit card issuers and debt collectors all supported the Consumer Financial Protection Bureau’s revised regulations. But they face a steep learning curve in complying with the rules, which take effect Nov. 30.

Executives at JPMorgan Chase, Capital One and U.S. Bancorp all spoke this week about plans to take on upstarts that offer interest-free financing on consumer purchases. The increased competition figures to result in tighter margins across the category.

Elizabeth Warren asked the Federal Reserve this week to force the spinoff of the bank’s nonbanking operations. Wells, which was recently hit with another $250 million fine, countered that it has made significant progress in improving its risk management and addressing misconduct.

Alastair Borthwick, the president of global commercial banking, will succeed Paul Donofrio, who is transitioning to a new role as head of sustainable finance. The company also appointed three women to its executive leadership team.

Minnwest Bank, which focuses largely on agriculture lending, said it will “become more sophisticated" with its mortgage and consumer lending services by acquiring Roundbank.

The Arkansas bank has hired an 11-member team to develop its new operation. Much of the team joins from TCF Financial, which was sold to Huntington Bancshares in June.

The digital lender, which bought Radius Bancorp in February, still expects to record a full-year loss partly because of merger-related costs. But its stock price soared Thursday after it reported second-quarter net income of $9.37 million.

Democratic proposals to offer free accounts, restrict overdraft fees and cap interest rates have zero chance of passage. But analysts say lawmakers’ push for products that help consumers is influencing some banks’ decisions to institute reforms on their own.