WASHINGTON – Invoking a powerful new provision of the Dodd-Frank Act that bars reckless manipulative conduct, the U.S. Commodity Futures Trading Commission announced Wednesday it had reached a $100 million settlement with JPMorgan Chase & Co. over massive trading losses by the so-called London Whale.

The settlement, includes a narrowly tailored admission of wrongdoing from the bank, which last week revealed it has set aside $23 billion to cover ongoing legal costs.