Just how risky is it to trade the Argentine peso these days? One bank says it’s so dangerous that investors shouldn’t even bet against it.

The Argentine peso headed for its worst week since December 2015 after the International Monetary Fund said it wants to conclude talks on a possible credit line as soon as possible.

The Argentine peso may face “disorder” next week if the nation’s central bank struggles to roll over about $30 billion of short-term notes set to expire, JPMorgan Chase & Co. said.

After erasing this year’s advance, emerging-market currencies ended the week in the green as U.S. inflation data reduced pressure on the Federal Reserve to step up monetary tightening. The rout hasn’t eased for the Argentine peso and the Turkish lira, which tumbled as authorities struggle to stem losses.

Philippine economic growth quickened to 6.8 percent last quarter as government spending surged, adding pressure on the central bank to raise interest rates to curb inflation. The peso and stocks rose.

The International Monetary Fund’s Christine Lagarde said the lender is seeking a rapid resolution for talks with Argentina over the establishment of a credit line that will help restore confidence in the country’s economy.