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The U.S. 30-year yield hit 5.39%, its highest since 2004, and Canadian fixed rates are next in line

01What happened
Wednesday was the worst day of the year for government bonds. The U.S. 30-year Treasury bond yieldBond yield The annual return an investor gets for lending to a government or company through a bond. Yields rise when bond prices fall. Fixed mortgage rates are priced from the 5-year Government of Canada yield. rose to 5.39%, a level last seen in July 2004, and the 10-year closed at 5.11%, up from 4.96% on Tuesday according to the Federal Reserve’s own daily table. Every Treasury maturity beyond two years now yields more than 5%. Overnight the selling continued, and by early Thursday the 30-year had touched 5.44%.
The trigger was a strong economy, not a weak one. S&P Global’s flash PMI for September, published Wednesday morning, put U.S. composite activity at 58.4, its highest in 62 months, with manufacturing at 57.0 against a forecast of 53.6 and services at 58.7 against 55.8. The survey said input costs rose at the fastest rate since October 2022 on fuel, transport and wages. The Fed raised its target range to 3.75% to 4.00% on 16 September, and markets now price better than even odds of further quarter-point increases in October and December.
Canada was pulled along. The Government of Canada 10-year yield rose to about 3.86% on Wednesday from the Bank of Canada’s 3.83% close on Tuesday, and the 5-year, which sets fixed mortgage pricing, closed Tuesday at 3.54%, up from 3.35% a month earlier. The dollar fell to 70.94 U.S. cents, its lowest in about seven weeks.
02Our view
Canadian fixed mortgage rates rise again before the 28 October Bank of Canada decision, with the 5-year Canada yield moving back toward the 3.65% it reached in mid-September. The Bank itself holds at 2.25%.
Why we think so. Wednesday was the worst day of the year for government bonds. The US 30-year Treasury bond yieldBond yield The annual return an investor gets for lending to a government or company through a bond. Yields rise when bond prices fall. Fixed mortgage rates are priced from the 5-year Government of Canada yield. rose to 5.39%, a level last seen in July 2004, and the 10-year closed at 5.11%, up from 4.96%. Every Treasury maturity beyond two years now yields more than 5%. The trigger was strength, not weakness: S&P Global’s flash PMI put US composite activity at 58.4, its highest in 62 months, with manufacturing at 57.0 and services at 58.7, and input costs rising at the fastest rate since October 2022. A selloff driven by growth and inflation data does not reverse in a week. Canada was pulled along, with the 10-year rising to about 3.86% and the 5-year, which sets fixed mortgage pricing, closing Tuesday at 3.54%, up from 3.35% a month earlier. Lenders fund fixed mortgages from the bond market: when the 5-year rose about a quarter point in the second week of September, several banks raised fixed rates by 10 to 20 basis points within days.
What the market is pricing. Forecasters expected US manufacturing at 53.6 and services at 55.8, so both beat by a wide margin. Markets now price better than even odds of further quarter-point Fed increases in October and December, on top of the move to 3.75% to 4.00% on 16 September. In Canada, the consensus is a hold at 2.25%, and we agree. The Bank cannot cut into a global bond rout and 3% inflation, and has no reason to hike when tariffs are cutting growth. The overnight rate has not moved since March.
What it means. Anyone renewing or closing a mortgage in the next 120 days can ask for a rate hold today rather than next week; it is free and it caps the damage if the next move is up. The gap between variable and fixed has narrowed, and a variable rate only wins if the Bank cuts, which is not on the table this autumn. A GIC saver gets the other side of the trade: higher yields mean better rates on new one to five-year terms, so a maturing GIC is worth comparing with the old ladder. The gap between a 2.25% Bank of Canada and a Fed near 4% keeps the dollar weak at 70.94 US cents. A household can check how much of its debt reprices in the next two years, and whether the budget still works at a renewal rate half a point higher.
What would change our mind. The US 10-year back below 4.8% or the Canada 5-year below 3.4% within two weeks, which would mean the market judged Wednesday’s PMI a one-off; or a September CPI print in mid-October with CPI ex-gasolineCPI ex-gasoline The Consumer Price Index with gasoline removed. When it sits well below the headline rate, the inflation is coming from fuel rather than from the broad economy. clearly falling, which would reopen the case for a cut. Either and we would say so.
What to watch. US initial jobless claims today, expected at 201,000; US new home sales for August, expected at 615,000 annualised; today’s Fed speakers, Barkin, Hammack and Paulson; Canada’s September CPI in mid-October; and the Bank of Canada decision and Monetary Policy Report on 28 October.
03Why it matters to you
If you are renewing or buying, fixed rates are taking their lead from the bond market, not the Bank of Canada. Locking at the right moment can save real money.
Sources CNBC, 30-year Treasury yield hits highest level since 2004 as bond market rout continues; Investing.com, 30-year Treasury yield hits 5.39%, a 22-year high, after hot PMI data; Axios, Treasury yields rip higher on renewed inflation fear; S&P Global, S&P Global Flash US PMI, September 2026; U.S. Federal Reserve, H.15 Selected Interest Rates, 22 September 2026; U.S. Federal Reserve, FOMC statement, 16 September 2026; Investing.com (via Yahoo Finance), Canada 10-year yield climbs as bond selling resumes; Bank of Canada, Selected bond yields, 22 September 2026 close; Ascenthya market feed, Bank of Canada Valet and CoinGecko data, last good copy in the database, 23 September 2026; Canadian Mortgage Trends, Bond yield surge pushes fixed mortgage rates higher across Canada; The Canadian Press (via BNN Bloomberg), S&P/TSX composite down more than 400 points, U.S. stock markets also lower



