The loonie traded higher at 78.13 cents US compared with an average of 77.25 cents US on Friday.
While most economists have been expecting the Bank of Canada to raise its key interest rate target later this month, the trade negotiations have been a key uncertainty.
The central bank had made a point of saying it was closely watching the NAFTA talks and other trade policy developments, which could hurt the economy.
Read full story here: Loonie Soars In The Wake Of The New Trade Deal With The U.S. And Mexico | CTV News