The PMI Number You're Ignoring Is the One That Actually Matters

The same day the latest U.S. and Canadian factory surveys dropped, two of the largest economies on the continent were quietly telling the same story — but investors probably missed it because both still came in above the "expansion" line.

The Canada manufacturing PMI eased to 53.0 in August from 53.5 in July, marking a fifth straight month above 50. That sounds solid. The U.S. ISM Manufacturing PMI fell from 55.6 to 54.6 on the same day, still expanding for an eighth consecutive month. Both numbers are above the 50 threshold that separates growth from contraction. By headline standards, everything is fine.

The part that matters for investors is buried in the input costs.

Across both countries, manufacturers are paying more for raw materials, and they've been paying more for months. The Canadian input price index hit a four-year high of 68.3 in July before easing only slightly in August to a four-month low — which is still historically elevated. In the U.S., the ISM prices index held at 71.1 in August for the 23rd consecutive month of increases. These are not temporary spikes. This is a sustained cost floor being pushed upward.

What's driving it is not a single event. U.S. tariffs on steel and aluminum, elevated fuel costs linked to the Middle East conflict, and shipping disruptions from the war in Iran are all feeding through to factory gates on both sides of the border. Fifty-seven percent of negative responses cited pricing volatility. Twenty-nine percent specifically named tariffs.

Then came the escalation most August survey respondents never saw coming.

On August 22, after trade negotiations collapsed at the last minute, the U.S. imposed 50% tariffs on roughly $20 billion in Canadian imports — goods ranging from agricultural products to cement to cosmetics, including items previously shielded under USMCA. On August 25, Canada announced retaliatory tariffs of up to 50% on over 700 American goods, set to take effect September 8. These include a doubling of Canadian tariffs on U.S. steel and aluminum from 25% to 50%.

The August PMI surveys were conducted mostly before this rupture. That timing detail is critical. The readings we just received captured the old tariff regime — not the one that starts next week.

Here's where the investor problem becomes concrete. Tariffs don't just raise prices. They reshape which businesses can survive the new cost structure and which ones cannot. The divide runs through one variable: pricing power.

A manufacturer that can raise selling prices without losing customers will absorb the tariff wall and come out the other side with margins intact. A manufacturer competing on price, with customers who will switch suppliers if costs go up, will see those margins compressed until the business can no longer sustain its previous operations.

The August data already show the pattern forming. Canadian manufacturers are raising output prices to offset higher input costs — and it's working, because domestic demand is still growing. New orders for Canadian factories have risen for five consecutive months. Employment jumped to 52.0, the highest since October 2024. Work backlogs rose by the most since June 2022. Canadian companies are hiring and building capacity because orders from within Canada are holding up.

But export orders — the ones destined for the U.S. — have been contracting for three straight months, slipping to 48.2 in August. The tariffs were already hitting before the August 22 escalation. S&P Global's economics director Paul Smith put it bluntly: "We may have already seen a high-water mark for growth."

On the U.S. side, the picture is different because the domestic market is larger and more self-contained. New orders softened from 56.7 to 53.7, and backlogs declined to 51.8. Production output remains strong at 58.3. But U.S. manufacturers importing steel, aluminum, and components from Canada now face a wall that didn't exist last quarter.

This is not a macro exercise. The question is which real-economy businesses have the economics to run through this wall.

Energy producers that sell globally priced commodities — crude oil, natural gas — are insulated from border tariffs because the product moves at world prices. A barrel of oil doesn't care what tariff is on a steel pipe. The infrastructure companies that own pipelines, toll roads, and utilities have regulated or contracted revenue streams with inflation adjustments built in. Industrial companies with monopolistic or duopolistic positions — defense contractors, specialty chemical makers, companies with patented processes — can pass costs through because there is no alternative supplier.

Companies that cannot raise prices because their customers will simply source elsewhere — commodity processors, competitive manufacturers, businesses with thin margins in price-sensitive sectors — are the ones that feel the full force of tariff-driven cost inflation. Their revenue stays flat while their costs rise. That math destroys margins, and eventually it destroys dividends.

This is why the PMI numbers alone don't tell you what to own. They tell you the direction of cost pressure. The investment decision comes from matching that pressure against individual company economics.

For an income-focused investor, the filter is straightforward. Start with the businesses that serve functions the economy cannot run without — energy production, power generation, logistics infrastructure, defense, critical industrial inputs. Check whether they have pricing power: can they raise prices through this cost shock without losing customers? Then verify the payout: does free cash flow cover the dividend at current levels, and does the balance sheet have room for a rougher quarter?

The reverse side of this framework is equally important. A tariff war that raises costs economy-wide is a headwind for high-yield companies operating on thin margins. If input costs are structurally higher — and the 23-month run of rising U.S. manufacturer input prices suggests they may be — then a dividend that looked supported on last year's cost basis may no longer be. The yield looks attractive only until the payout comes due.

The timing creates both risk and clarity. The August PMI surveys captured the pre-escalation reality. The September and October surveys will show what happens when the new tariff regime takes hold. If input costs accelerate further — which is the base case given that Canada's retaliatory tariffs target U.S. steel and aluminum, two inputs that U.S. manufacturers already cite as cost drivers — then companies without pricing power will face margin compression faster than analysts' models reflect.

The opportunity sits on the other side of that filter. Companies with pricing power, mission-critical economics, and balance sheets that can weather a rougher quarter — they benefit from the same cost inflation that pressures everyone else. Their customers have no alternative. Their dividends are funded by cash flows that expand, not contract, as prices rise.

That is not every manufacturing company. It's not even most of them. But it is the group that turns a tariff-driven cost shock into durable earnings and payout growth. The PMI data are just the leading indicator pointing toward which side of the line each business falls on.