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Fundamental Analysis

Aipocalypse Not Now. Economy Is Running Hot: Lots of Growth, Lots of Inflation

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Fundamental Analysis

October 27, 2026

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Aipocalypse Not Now. Economy Is Running Hot: Lots of Growth, Lots of Inflation

The October PMIs carry a credit story that equity has not priced. A 10-year Treasury at 5.00% sitting above a 2-year at 4.69%, while the Fed is hiking, is the bond market's way of saying it no longer believes it will be repaid in dollars worth what it lent.

Most people asked about inflation coming back would give it 40 or 50 percent. That is a polite way of saying they don't know, but they have stopped ruling it out. The S&P flash survey for October settles that. Manufacturing PMI rose to 56.0, the fastest growth since May 2022. Services business activity came in at 57.9, the second-highest reading in nearly five years. Selling prices rose at the sharpest pace in over four years. Producer prices were already up 6.3% year-over-year in September, the worst since December 2022, and the survey says October was worse.

Equity reads that as growth. The curve reads it as a transfer.

Where Did the AIpocalypse Go?

The fashionable fear this year was that artificial intelligence would hollow out hiring and push the economy toward a disinflationary slump: white-collar layoffs, collapsing wage bargaining power, margins expanding on a shrinking payroll. It was an elegant theory. It has the virtue of being about the future, where nothing can be checked.

October can be checked. Employment rose at the second-fastest pace in over four years. Manufacturing jobs grew at the fastest pace since March 2012, when the economy was climbing out of the Great Recession. Companies are not replacing workers. They are hiring to build capacity, because backlogs rose at the sharpest rate since May 2022, across both manufacturing and services. S&P's economists say the output readings are consistent with GDP growing at a 5% annualized rate after 4% in the third quarter. Excluding the post-COVID reopening, they call it the best growth spell for US businesses since early 2015.

Consensus deserves credit for one thing. The productivity case for AI is real, and over a long enough horizon it may well be disinflationary. Nothing in a single month's survey refutes that.

The part consensus misses is that the timing runs backward. The AI buildout is a capital spending boom before it is a productivity dividend. It consumes steel, aluminum, copper, power, and skilled labor, which happen to be the inputs companies named when they explained why their costs rose. Respondents cited metals costs rising "often due to tariffs or shortages," and service providers pointed to wages, utilities, and insurance. A boom that bids for scarce physical inputs is inflationary while it is being built.

The apocalypse was a deflation story. October delivered the opposite.

What Is the Bond Market Saying?

The plainest signal in the market is the shape of the curve, not the level of the stock index.

The Fed cut rates last fall while inflation was accelerating, and it is now hiking. In a normal tightening cycle, the front end rises faster than the long end, the curve flattens, and eventually it inverts. The 2022 cycle followed that script: 425 basis points of hikes in a single year, CPI peaking at 9.1%, and a deep inversion signaling that the bond market expected the Fed to win and growth to break.

This time the curve is doing something different. As of October 23, the 10-year sat at 5.00% and the 2-year at 4.69%, a positive 2s10s spread of 31 basis points with hikes underway. Lenders are demanding more to lend for ten years than for two, even as the central bank tightens. Spread that open during a hiking cycle does not mean the market expects Fed tightening to tame inflation. It means the market doubts the Fed will be allowed to finish the job.

Wolf Richter puts the policy plainly in the source piece. Running the economy hot has been the administration's approach to making the deficit and debt more manageable, because no recent Congress or administration has shown any intention of fixing the deficit through fiscal policy. The Fed's cuts last fall signaled acquiescence. The current hikes signal an attempt to keep the process from spiraling, which is not the same as stopping it.

Bond investors have done the arithmetic. If real growth runs near 5% and producer prices run above 6%, nominal growth comfortably exceeds a 5% ten-year yield. A government whose debt compounds at a lower rate than its nominal revenue base is inflating its way toward solvency. The term premium in the long end is the price lenders charge for being the instrument of that policy. Judging by a 5% yield against that pace of nominal growth, they are not yet charging enough.

A positive curve in a hiking cycle is a vote of no confidence.

Who Pays for Running Hot?

John Maynard Keynes wrote in the General Theory of "the euthanasia of the rentier," the slow erosion of the return to those who live off fixed claims on capital. He meant it as a long-run consequence of abundant capital. Running hot produces the same result faster, by a different route: the rentier is not starved of yield; he is repaid in depreciated currency.

That fact reorders the credit picture, and it is where first-level thinking goes wrong.

First-level thinking says that a booming economy is good for credit. Revenues are rising, earnings and profits are, per S&P, "especially healthy," interest coverage improves, defaults stay low, and spreads stay tight. Every piece of that is correct. A borrower with fixed-rate debt issued at a low coupon benefits enormously from 5% real growth and 6% producer inflation. Its revenue line inflates. Its interest bill does not.

Second-level thinking asks who sits on the other side of the trade. The answer is the holder of the bond. Credit spreads measure the probability and severity of default, and in a hot nominal economy that probability falls. Spreads can stay calm, or even tighten, while the all-in return to the lender, after inflation, deteriorates. A tight high-yield spread in this environment is not a clean bill of health for credit investors. It is a statement that borrowers are winning.

The distinction between credit risk and lender return is the blind spot. Equity investors glance at quiet spreads and conclude the credit market sees no trouble. Credit has noticed exactly what kind of trouble this is: a duration problem and a purchasing-power problem, not a solvency problem. Default risk is falling. Real return risk is rising. The two show up in different places on the screen.

One caveat applies here. We are not citing current option-adjusted spread levels for investment grade or high yield in this piece, and the claim that spreads are calm rests on the logic of the regime rather than on a reading taken this week. The rate data is firm. The spread inference is a hypothesis, and it would be falsified by a visible widening in high-yield spreads ahead of any growth slowdown.

LQD across the regime window.
LQD across the regime window.

Where Does the Refi Wall Bite?

If the hot economy is a gift to fixed-rate borrowers, the gift has an expiration date stamped on every bond: maturity.

A large share of corporate debt was locked in during 2020 and 2021 at coupons that now look like artifacts. Those borrowers have spent the past several years enjoying the gap between their funding cost and the market rate. Each one that comes due must refinance into a world where the risk-free 10-year pays 5.00% before any credit spread is added. A company that issued at a low single-digit coupon and refinances at a high-single-digit or double-digit all-in yield faces an interest bill that can double or triple overnight. Nominal revenue growth cushions that, and October's PMI says the cushion is thick today.

Two groups do not get the cushion.

The first is floating-rate borrowers. Leveraged loans and private credit facilities reset with short rates, so every Fed hike lands on their income statements within a quarter. They took no benefit from fixed coupons in the first place. For them, running hot is pure cost: higher input prices on one side, higher interest on the other, and revenue growth that has to outrun both. We have not measured the size of the floating-rate maturity stack for this piece, and its exact dimensions matter. The direction of the pressure does not depend on them.

The second group is any business that cannot pass costs through. The S&P report is explicit that intensified supply-chain bottlenecks and growing order books are "making it easier for companies to pass higher costs on to customers." That is the hinge. Pass-through works while backlogs are swelling. When backlogs normalize, which they always do eventually, companies are left with input costs that have reset higher, wage bills that have reset higher, and refinanced debt that has reset higher. All three of those costs are sticky. Pricing power is not.

Running hot flatters credit until the backlog clears and the coupon resets.

What Breaks the Calm & Who Is Holding the Wrong Hedge?

The 2022 analog is instructive, though not for the reason most people cite it. Equities fell roughly 20% that year. Long-duration Treasuries posted their worst annual losses in decades. Stocks and bonds fell together, which broke the core assumption of the balanced portfolio: that bonds rally when stocks fall. In an inflation shock, the correlation flips. Duration is not the hedge. It is the second source of loss.

Consider the hedge instruments a standard playbook reaches for in a setup like this one: long-dated Treasuries via TLT, and volatility via the VIX. In a growth scare, TLT works. In a running-hot regime with a Fed that is hiking reluctantly and a curve demanding more term premium, TLT is the asset being repriced. Holding it as protection against an equity drawdown triggered by inflation repeats the precise error of 2022. Volatility protection survives the regime change. Long duration does not.

The key difference from 2022 matters too. That cycle began from an extreme inflation reading and an inverted curve that told you the Fed would overtighten into recession. This one begins with producer inflation at 6.3%, a positive curve, and a policy apparatus that has told you, through last fall's cuts, that it prefers inflation to fiscal arithmetic. That arguably makes the long end more dangerous this time, not less, because the market cannot count on the Fed to break inflation and hand back duration gains on the other side.

On the scenarios, we treat the probabilities as one input, not a forecast. The more likely path, in our framework, is that October marks a regime transition, with cross-asset positioning and sector rotation repricing toward persistent inflation rather than a blip. A faster acceleration, where second-order effects reach earnings revisions and credit availability before the market repositions, is less likely but plausible. The case where the regime simply stabilizes and the move reverses is the smallest of the three. I would not bet on the precise path. The asymmetry is clear enough without precision: two of three paths run against long duration.

The positioning that follows is narrower than "buy credit." Within spread product, coupon beats duration. Shorter-duration high yield, the territory of HYG and JNK, gets paid by the same nominal growth that is hurting the lender in real terms, and its shorter duration limits the damage from a long end that keeps climbing. Long investment grade such as LQD carries the opposite mix: strong credit, heavy rate sensitivity, and an outsized exposure to exactly the term-premium repricing the curve is signaling. Emerging market debt via EMB is a harder call, since a hot US economy with rising Treasury yields has historically tightened dollar funding for EM borrowers. The case for EMB here is weaker than the instrument list suggests.

The thesis breaks if October proves to be the peak. If backlogs roll over quickly, if services inflation running at its fastest since August 2022 fades within a quarter, and if the 10-year falls back through levels well below 5.00% on a growth scare, duration rallies and the coupon-over-duration trade underperforms. That is the stabilization scenario, and it deserves respect. Nothing in the October survey, which shows supplier delivery times lengthening the most since 2022 and employment accelerating, points that way yet.

The AI apocalypse may arrive someday, as a productivity shock that tames prices. October's economy is building toward it with steel, copper, and overtime, and paying for it with the bondholder's purchasing power.

The long bond is not insurance against this boom; it is the policy that pays for it.

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