1. Federal regulators unveiled a sweeping plan to soften the Volcker Rule, opening the door for big banks to resume trading activities that were restricted under the 2010 Dodd-Frank law.

Jerome Powell, the Fed chairman, above, said it would streamline “overly complex and inefficient requirements.”

The changes would give big banks the freedom to engage in more complicated — and possibly riskier — trading. Consumer advocates and other financial watchdogs say that they would allow a return to the Wild West days on Wall Street.