Currencies September 28, 2026 09:58 AM

Loonie Slips as Wider Canada-U.S. Yield Gap and Softer Oil Pressure Currency

USD/CAD drifts above C$1.41 as bond spreads and easing crude prices reduce support for the Canadian dollar

By Caleb Monroe
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The Canadian dollar weakened against the U.S. dollar on Monday, with USD/CAD trading near C$1.4150 as a widening two-year Canada-U.S. yield spread and retreating oil prices removed support for the loonie. The currency has now recorded its third consecutive weekly drop and has surrendered much of September's earlier gains.

Loonie Slips as Wider Canada-U.S. Yield Gap and Softer Oil Pressure Currency
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Key Points

  • USD/CAD traded around C$1.4150 in early Monday trading, up roughly 0.06% on the day, with a session range of C$1.4142 to C$1.4165 versus a previous close near C$1.4141.
  • The Canadian dollar recorded a third straight weekly decline last week and slipped to a near 10-week low around C$1.4154 on Friday as Canadian yields fell further below U.S. yields.
  • The two-year Canada-U.S. yield spread widened to roughly 153 basis points by Friday, its widest since February 2025, while oil prices weakened from recent highs as markets assessed the possibility of a U.S.-Iran agreement.

The Canadian dollar moved lower against the U.S. dollar in early trading on Monday, with USD/CAD around C$1.4150, an intraday increase for the pair of roughly 0.06%.

Trading during the session ranged between approximately C$1.4142 and C$1.4165, compared with a prior close near C$1.4141. The decline continues a trend from last week when the loonie suffered its third consecutive weekly loss.

On Friday the Canadian dollar fell to about C$1.4154, a near 10-week low, as Canadian bond yields declined further relative to U.S. yields. By that day the two-year Canada-U.S. yield spread had widened to roughly 153 basis points, its largest gap since February 2025, a dynamic that made U.S. assets relatively more attractive and weighed on the Canadian unit.

Energy markets provided less support to the loonie. Oil prices eased from recent highs as market participants assessed the possibility of a U.S.-Iran agreement. That decline in crude removed some of the lift the Canadian dollar typically receives from Canada’s sizable energy exports.

The net effect has been a reversal of much of the Canadian dollar’s gains earlier in September. USD/CAD has climbed from roughly C$1.38 at the start of the month to levels above C$1.41, bringing the loonie back close to exchange-rate territory last seen in mid-July.


Market context and mechanics

The near-term weakness in the Canadian dollar reflects two interrelated forces cited by market observers: a larger yield advantage in U.S. assets and weakening oil prices. The wider two-year yield differential has made U.S. borrowing returns comparatively more appealing, while softer crude has diminished a key export-driven support for the Canadian currency.

Those factors combined to push USD/CAD higher in recent sessions and help explain the loonie’s surrender of September gains.


Implications for markets

  • Foreign exchange markets - USD strength against CAD as yield and commodity dynamics shift investor preference.
  • Bond markets - The pronounced two-year yield spread between Canada and the U.S. is influencing cross-border capital allocation.
  • Energy sector - A retreat in oil prices is reducing support for the commodity-linked Canadian dollar.

Risks

  • Wider Canada-U.S. yield spreads - Continued relative weakness in Canadian yields versus U.S. yields could sustain pressure on the loonie and affect currency-sensitive sectors such as exporters and importers.
  • Softer oil prices - If crude remains below recent highs while markets consider geopolitical agreements, energy exports may provide less support to the Canadian dollar, impacting Canada’s energy sector and trade balances.
  • Volatile FX moves - The reversal of September gains in the loonie and proximity to mid-July levels suggest potential for further volatility in foreign exchange and related financial markets.

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