The BoC's overnight rate has sat at 2.25 percent for six straight meetings, but the Government of Canada 10-year yield has climbed 34 basis points in the same window, driven by a US bond market the Bank of Canada does not control.

Headline CPI accelerated to 3.0 percent in July while core inflation barely moved, and the Federal Reserve's July minutes showed hawkish sentiment running deeper than the three known dissents.

A hot GDP print, a 3.0 percent headline number and a Fed watching Treasury yields hit 19 year highs all land on Macklem's desk before September 2.

Core inflation has been flat for three months. The 30-year Treasury yield hitting its highest level since 2007 is the number that actually moves Canadian mortgage rates.

The Bank of Canada's September 2 decision is likely a formality. The window on either side of it, running through Jackson Hole and the Fed's own September 16 meeting, is where Canadian bond yields are actually being set.

Canada's Q2 GDP and jobs beat argue for BoC firmness. The same morning's US payrolls miss cut September Fed hike odds by half. Same week, opposite direction.

A blowout Canadian jobs report and a shock US miss landed the same morning, sharpening the policy debate at both central banks without closing the 137 basis point gap between them.

Record export volumes and a weaker loonie both pushed the number higher. The distinction between the two matters for what the data tells the Bank of Canada ahead of its September 2 decision.

Second quarter GDP is tracking a 3.4 percent annualized pace against the Bank of Canada's own forecast of 2.5 percent, a sharp reversal from the first quarter's contraction. The bond market has already priced the consequence for the September 2 decision.

Both central banks are looking at the same oil driven inflation shock from the Hormuz conflict. The Bank of Canada sees it fading. Three Federal Reserve members do not.

Three dissents, the most on a single Fed decision since 2016, told markets more than Wednesday's statement did. The Bank of Canada does not meet again until September 2, and the transmission from Wednesday's vote is already reaching Canadian yields.

CME FedWatch odds for this afternoon's Fed decision have swung between 10.7% and 46.5% over two weeks. Odds for September have sat near 80% for most of that same stretch. The gap between a noisy number and a settled one is the real story heading into 2 p.m. ET.

CME FedWatch prices roughly a one-in-three chance of a hike Wednesday, nearly unchanged from last Thursday's peak despite oil's steepest three-session retreat since the war began. Canada's own inflation picture is calmer, but Canadian yields are not insulated from Wednesday's outcome.

The Federal Reserve's July meeting had become a genuine contest, with rate hike odds climbing on energy driven inflation fears. A seven per cent oil price collapse Monday morning arrives less than 48 hours before the vote, the same day the Bank of Canada's own deliberations summary from its sixth consecutive hold is released.

Headline CPI eased to 2.8% on a temporary drop in gasoline prices. With Brent back above $100 and new tariffs landing before the Bank's next decision, the disinflation may not survive July.

Market-implied odds of a July 29 Fed hike spiked past 46% and have since fallen under 17%, but oil is still climbing, and that leaves Governor Macklem facing the same inflation calculus with less certainty about what Washington does first.