Rising oil prices and a global bond selloff are sending Canadian fixed mortgage rates higher
Canada's 10-year government bond yield climbed to 3.904% on Thursday, September 10, rising 5.6 basis points. Global bond selloff deepened amid surging oil prices and renewed concerns that inflation will prove more stubborn than markets had expected.
The benchmark yield had closed at 3.848% on Wednesday, according to market data, and now sits well above the 3.50% median year-end forecast in the Bank of Canada's (BoC) Market Participants Survey. That's a gap that underscores how dramatically the interest rate outlook has shifted since the start of the year.
The immediate catalyst is Brent crude climbing above $100 a barrel, driven by the escalating conflict in the Middle East, which has stoked fears that elevated energy costs could delay rate relief globally.
The S&P/TSX Composite opened down 0.85% on Thursday, with rising yields weighing on the relative appeal of equities.
The BoC held its overnight rate at 2.25% on September 2, its fifth consecutive hold, noting that Canadian inflation had been hovering around 3%, driven largely by gasoline prices, and warning explicitly that prolonged energy-price increases posed upside inflation risks.
Read more: Rates steady, but economists see a different move on the horizon
Structural forces driving yields higher
According to Vikram Rai, senior economist at TD Economics, Canada's 10-year yield has risen roughly 60 basis points since the Iran conflict began.
More recently, firmer domestic data and increasingly hawkish BoC communications have kept the Canada–US yield spread from widening further, Rai noted — suggesting domestic factors are now adding to, rather than offsetting, the upward pressure on Canadian borrowing costs.
Foreign governments and central banks now hold 13% of publicly traded US Treasuries, down from 15% three years ago, while new corporate bond issuance has run 50% to 100% ahead of year-earlier levels, according to Rai's analysis.
Private investors must absorb a growing share of that supply, and are demanding higher yields as compensation.
What the selloff means for Canadian mortgage brokers
For mortgage professionals, the direction of long-term bond yields now matters more than any single central bank decision. As bond yields climbed to their highest level of 2026, lenders have already been repricing fixed-rate products upward, with the best available five-year fixed rate sitting near 4.04%.
The implications for how Canadian borrowers are reassessing fixed and variable mortgage choices are already reshaping client conversations.
With structural forces keeping long-term yields elevated and the BoC's next rate decision set for October 28, brokers face the prospect of a persistently higher borrowing-cost environment well into 2027, with the bond market offering little near-term relief.
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