The gap between what traders knew at 4:00 p.m. Friday and what happened at midnight is the whole story here.
Through the session, the reporting out of Washington pointed one way. Negotiators were still in the room. The terms under discussion had US auto tariffs coming down to 15% and some steel and aluminum duties dropping to 25% behind a quota. Trump himself said the talks were moving along with under six hours left on the clock. That is a tape leaning toward relief, not rupture.
The tape delivered accordingly. The S&P 500 finished up 0.43% at 7,674.37, the Nasdaq up the same at 26,180.45, and the Dow up 517.80 points, or just under 1%, at 53,277.01. The Russell added 0.9%. North of the border the composite was up around 0.88% in morning trade, with energy and mining doing the lifting.
None of that was about Canada. Friday was a bounce off a brutal week in Treasuries, with healthcare carrying the Dow and crypto-linked names ripping as bitcoin ran to $77,000. All the major US indexes still closed the week lower. The trade file was background noise that everyone assumed would resolve itself.
It didn’t. Carney suspended negotiations minutes before the deadline, recalled his team to Ottawa, and said the last-minute changes to the American terms were unfair, uneconomic, and enough to call into question whether any deal signed would hold. The tariffs went live at 12:01 a.m. Eastern.
The $20 billion number is the least interesting part
Washington’s own figure puts the covered goods at roughly $20 billion. Ottawa says $28 billion. Either way it lands on cement, building materials, liquor, certain clothing, and hockey sticks, which is around 5% of what Canada ships south. Against nearly $900 billion in annual two-way trade, that is a rounding error.
The market impact isn’t in the goods. It’s in three things that were not priced on Friday.
First, the auto and metals relief is gone. That was the substantive part of the package, the part that would have moved earnings for real companies on both sides of the border. It evaporated with the talks. Anyone positioned for a step-down from 25% on steel and aluminum, or on vehicles, now owns the status quo instead.
Second, there is no process left. A US official said late Friday that no further talks are scheduled, and that the administration will present options to escalate if Canada retaliates. Carney has committed to matching dollar for dollar. Two governments with retaliation commitments and no calendar is a different risk profile than two governments arguing over a term sheet.
Third, the legal foundation is untested. These duties came in under Section 338 of the Tariff Act of 1930, a provision that lets the president hit a trading partner found to discriminate against American commerce with up to 50%. It has essentially never been used this way. A challenge is close to certain, which means the tariffs carry an expiry risk nobody can price and importers can’t plan around.
What to watch before Monday
The retaliation list matters more than the American one. Canada has said it will match the value, but not yet which American sectors absorb it. That list determines which US exporters take the hit and whether this stays confined to consumer goods or reaches into machinery, agriculture, and energy equipment.
Beyond that, watch for whether the escalation options get used. Greer has framed the 50% duties as payback for Canada being one of only two countries, alongside China, that retaliated against earlier rounds. If the American read is that retaliation invites more retaliation, the ceiling on this is a lot higher than $20 billion of hockey sticks and cement.
Autos, rails, steel and aluminum, and building materials carry the gap risk into Monday’s open. So does the Canadian dollar. The broad indexes probably don’t care much, at least not at first, because the direct exposure genuinely is small.
The thing to keep in view is that this was supposed to be the week the file got closed. It got reopened instead, with no date on the next meeting.