by Editorial Team, AdvisorAnalyst.com
The word "stagflation" has returned to financial headlines with the persistence of a recurring nightmare. Google Trends data cited by Man Group portfolio manager Henry Neville shows a peak in public interest as recently as March 2026, in the wake of what he describes as "the stagflationary implications of the Middle East war" — a level not far off the zenith recorded in June 2022. The fear is loud. But Neville's diagnosis is more unsettling than the headline panic suggests: the real danger isn't that investors are too alarmed. It's that 45 years without a genuine stagflationary episode has left the investment community comfortably numb — fluent in the vocabulary of the risk, but dangerously inexperienced in its actual anatomy.
In a sweeping research piece published April 30, 2026, Neville offers something rare in the current debate: a disciplined historical accounting of every genuine stagflationary episode in the United States since 1890, and a clear-eyed assessment of which assets and strategies actually delivered. The conclusions challenge almost every instinct the modern investor has been trained to trust.
The Taxonomy of Stagflation
Neville begins with a definitional act of clarity. Of 27 NBER recessions since 1890, he identifies only seven as stagflationary — defined as a recession in which inflation annualizes above 3%, or 100 basis points above the Fed's target. Eight of those 27 recessions were outright deflationary; 12 saw low but positive inflation. "It's unusual," Neville writes plainly, "in other words. So I wouldn't want to say much with huge conviction." That admission of epistemic humility is rare in market commentary, and it underscores the analytical rigour of what follows.
Crucially, Neville observes that every genuine stagflationary episode in his dataset has occurred "in and around a war, a monetary policy event, or some combination of the two." Today, he notes, one of those conditions is clearly present: "War, tick. Monetary tectonics, jury's out." The concern over Federal Reserve independence, he adds, represents a threat not seen "for 50 years." Stagflation, he is careful to note, "is not borne out in the numbers yet, at least not on the growth side of the equation. But some of the pieces are there."
The Seven Episodes
The 1918–19 episode, when annualized inflation hit 11.4%, emerged from the rapid unwind of the wartime command economy and the Federal Reserve's subordination to the Treasury. Neville notes that the Fed "prioritized orderly bond issuance markets over consumer price stability" — a configuration investors should find recognizable today. Stocks were flat to slightly positive; bonds and gold lost ground in real terms, though mechanically so, given the gold standard peg.
The 1957–58 episode, described as "a poor man's stagflation," is notable as one of only two episodes where CPI actually accelerated through the recession. Fed Chair William McChesney Martin's tightening cycle, combined with cost-push inflation driven by concentrated manufacturing industries and strong union bargaining power, produced a short, mild stagflation with bonds as the standout performer — precisely because central bank independence was being "muscularly asserted."
The 1969–70 episode, a product of Lyndon Johnson's simultaneous escalation in Vietnam and the Great Society programme — "guns and butter," as Neville frames it — introduced the first crack in Bretton Woods. Hard assets and Value performed; small-caps underperformed large. Gold showed its first positive real return of any stagflationary episode, as partial price freedom replaced the fixed peg.
The 1973–75 episode is what Neville calls "central casting's stagflation" — the OPEC embargo, the final collapse of Bretton Woods, the Nixon wage-price control unwind, Arthur Burns' fiscal capture, and global harvest failures converging simultaneously. Industrial production fell 15% peak to trough. Inflation annualized close to 11%. Gold surged 55% in real purchasing power terms. Yet Neville is measured in his assessment: "For me, there's something a bit 'one hit wondery' about this." The gold performance, he argues, was largely a mechanical consequence of "the exceptional unwinding of the Bretton Woods peg" — a structural regime event unlikely to repeat.
The 1980 episode, with inflation annualizing at 13.8%, is among the most instructive — not for what worked, but for what didn't. Volcker's appointment in August 1979 and his commitment to price stability over the labour market created extreme whipsaw conditions. Gold moved from up 25% to down 8% to up 19% within a single episode. Trend-following, which worked in six of the seven stagflations, was the one casualty of Volcker's abrupt regime change. "The patterns were inconsistent," Neville writes, "and Trend consequently suffered." It is a critical caveat: trend strategies are structurally vulnerable to abrupt regime reversals — precisely the kind of reversal a newly assertive Fed might engineer today.
The 1981–82 episode is the resolution — "Volcker Triumphant." Rates were taken to unprecedented levels under what Neville describes as "bone-crunching political and popular pressure." Bonds surged as the market priced the end of inflation and fixed income reclaimed its flight-to-safety role. Gold was negative. Commodities fell sharply, as the recession was "triggered on purpose to destroy demand for stuff, and it worked." Equity declines were surprisingly contained, which Neville attributes to "relief pricing of policy stability."
The 1990–91 episode — "the stagflation that wasn't" — scraped into the definition on the back of the Gulf War oil price spike, but core CPI never followed through. Trend, Momentum, and Quality all worked. Gold did not. Value lagged, which Neville reads as "an early precursor to Graham & Dodd being a paradigm for failure through the rest of the decade."
Seven Lessons
From the seven episodes, Neville extracts seven lessons with surgical economy. True stagflations are rare; three of the seven episodes may not meet the "real McCoy" threshold, leaving just four unambiguous cases in 150 years, "with nothing in the last 45." Bonds work when monetary policy credibility is intact; they fail when it isn't. Equities draw down in every episode but the first, though "the magnitude of this trough is often less than you might have expected, and the recovery is usually pronounced." Trend has worked in every episode bar 1980, making it "one of the best stagflation hedges there is" — with the explicit caveat that regime reversals remain its Achilles heel. Commodities outperform in stagflation versus conventional recession, averaging +5.5% real annualized. And gold — despite its billing — "was a disappointment," delivering meaningfully only in 1973–75, when its performance was a function of unique structural conditions rather than a repeatable inflation hedge.
This is precisely where the numbness becomes dangerous. An investment community that has not navigated a genuine stagflation since 1990 — and arguably since 1981 — has built its intuitions in the absence of the experience. Gold as stagflation hedge. Bonds as safe haven regardless of monetary regime. Equities to be abandoned at the first sign of slowing growth and rising prices. Neville's historical record dismantles each of these reflexes with evidence. The anesthetic of four decades of disinflation, the Great Moderation, and the post-GFC policy playbook has dulled the diagnostic instincts that this environment may soon demand. Forewarned, Neville concludes, is forearmed — but only if you've shaken off the numbness before the real thing arrives.
Key Takeaways for Advisors and Investors
- Stagflation is rarer than the headlines suggest. Only seven episodes qualify across 150 years of U.S. economic history — and as few as four are unambiguous. Advisors should resist positioning portfolios for a low-probability tail event without clear evidence that both the "stag" and "flation" components are confirmed in the data.
- Trend-following is the most consistent stagflation hedge in the historical record. It worked in six of seven episodes, underperforming only during Volcker's abrupt 1980 regime reversal. Managed futures and systematic trend strategies deserve serious consideration in portfolios being stress-tested for stagflationary scenarios.
- Gold's stagflation credentials are weaker than widely believed. Its standout 1973–75 performance was structurally unique, tied to the unwinding of the Bretton Woods gold peg. Advisors relying on gold as a stagflation hedge should understand they are extrapolating from a sample of one.
- Bond performance hinges entirely on monetary policy credibility. Fixed income has been a strong performer in stagflations where central bank independence was firmly asserted (1957–58, 1981–82, 1990–91) and a significant detractor when it was not (1918–19, 1973–75). The current policy environment — with questions circulating around Fed independence — warrants close attention.
- Forty-five years without a genuine stagflation is not immunity — it is amnesia. The greatest portfolio risk may not be stagflation itself, but the comfortably numb conviction that today's instincts, calibrated entirely in its absence, are adequate to navigate it. They may not be. Neville's history is the antidote.
Henry Neville is a Portfolio Manager in Man Group's Solutions team and author of "The Road Ahead" research series.
