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Canadian Dollar Slips Past 1.40 as Oil Prices Fall, Fed Rate Hike Bets Rise

Summary
The Canadian dollar weakened against its U.S. counterpart, crossing a key psychological threshold as declining crude oil prices and expectations for a more hawkish Federal Reserve weighed on the currency.
The Canadian dollar extended its recent decline on Monday, pressured by a combination of falling crude oil prices and mounting expectations of further U.S. monetary policy tightening. The currency weakened past a key psychological level against the greenback, trading near its lowest point since early August.
Dual Headwinds Weaken the Loonie
The USD/CAD pair, which moves inversely to the Canadian dollar's value, traded at approximately 1.4007 on Monday, a gain of 0.17% for the U.S. dollar, according to Investing.com data. The move pushed the pair further above the 1.40 threshold, a level it breached last week when the Canadian dollar hit its weakest point since August 7, 2024.
The currency's slide has accelerated over the past two weeks. Official data from the Bank of Canada shows the USD/CAD exchange rate climbed from 1.3784 on September 8 to 1.4002 by September 18, reflecting a broad-based weakening of the loonie.
Monetary Policy Divergence in Focus
A widening interest rate differential between the U.S. and Canada is a primary driver of the Canadian dollar's weakness. The U.S. dollar continues to find support from market expectations that the Federal Reserve may implement further rate hikes to combat inflation. Chicago Fed President Austan Goolsbee stated Monday that persistent inflationary pressure from strong demand could necessitate higher interest rates.
AdIn contrast, the Bank of Canada's policy rate currently stands at 2.25%, creating a significant gap that enhances the appeal of U.S. dollar-denominated assets for investors. This divergence is an increasingly critical factor for the currency, with traders watching for any signals of a policy shift from the Bank of Canada.
Oil Price Correlation Under Strain
Falling oil prices added to the pressure on the commodity-linked Canadian dollar. Brent crude futures fell approximately 2% on Monday amid signs of a potential restoration of Saudi oil supply and diplomatic efforts in the Middle East. As Canada is a major energy exporter, lower oil prices typically hurt its currency.
However, the traditional link between oil and the loonie is being tested. "I think the key to the CAD right now is that oil is no longer the sole determinant of the fair value range," said Kyle Sonlin, President and Co-founder of Global Settlement Network. Sonlin noted that factors like "tariff uncertainty, concerns over Canadian growth, and a continued favorable interest rate environment for the U.S. dollar" are now constraining the currency.
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