Starting a war is easy; ending one is hard. That simple calculus is increasingly resonating in financial markets as the backlash from the Middle East conflict persists and evolves. The economic effects have varied, but the recent optimism that the US would remain largely insulated is fading. Markets are beginning to demand higher risk premia as compensation.

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Trend Watch: Global Markets & Portfolio Strategy Benchmarks

Inflation worries weighed on markets last week. Not exactly news at this late date, but the better‑than‑expected US payrolls data for May highlighted that the world’s biggest economy remains resilient in the face of an energy crisis. Treasury yields, unsurprisingly, rose as investors sharpened their focus on the possibility that inflation risk may linger longer than recently expected, supported by a relatively robust economy, which in turn lifts the odds that the Federal Reserve may soon start raising interest rates.

No one should dismiss these concerns, but it’s still early for strategic‑minded investors to assume the worst‑case scenario is baked in. By some measures, a pullback was overdue. The S&P 500 Index had rallied for nine straight weeks, a relatively rare event with only ten prior occurrences to the latest run‑up, according to The Motley Fool. The odds for a pause were high even before Friday’s surprisingly strong jobs report.

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Global asset‑allocation strategies suffered on Friday as well. All of our proxy ETFs fell sharply last week. The aggressive strategy (AOA) was especially hard hit, slumping 2.3%.

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● How to Win a Trade War: An Optimistic Guide to an Anxious Global Economy
Soumaya Keynes and Chad P. Bown
Review via Reason
The ancient Chinese military strategist Sun Tzu advised that “he who wishes to fight must first count the cost.” Joshua, the brilliant (for its time) computer in the 1983 film WarGames, did the counting and concluded that “the only winning move is not to play.”
Both lines find their way into How To Win a Trade War. This is no arid academic analysis, and it does not read like one. Instead, Soumaya Keynes, a journalist at the Financial Times, and Chad Bown, a senior fellow at the Peterson Institute for International Economics, have crafted a witty, fast-paced analysis of how the global trading system has unraveled in the aftermath of COVID, Brexit, and (most importantly) President Donald Trump’s electoral successes.

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Measuring Bubbles via Put-Call Disparity: A Model-Free Approach
Robert A. Jarrow (Cornell U.) and Simon Kwok (U. of Sydney)
May 2026
This paper introduces simple, model-free lower and upper bounds for measuring the size of asset price bubbles. Assuming only that the market satisfies no-free-lunch-with-vanishing-risk and that all trading strategies are admissible, our framework avoids restrictive parametric models and the no-dominance assumption. We demonstrate that put-call disparity provides an observable lower bound, and is economically justified by short-sale constraints. Additionally, the lowest price of an out-of-the-money (OTM) call option determines the upper bound. To ensure empirical reliability, we modify these bounds using data-driven regularization and bootstrap methods to disentangle genuine bubble signals from market microstructure noise and to reduce reliance on thinly traded deep OTM options. Using S&P 500 index option prices from 1996 to 2025, we document a sustained bubble during the COVID-19 era and capture market exuberance preceding the 2000 dot-com and 2008 financial crashes. In addition, the empirical study suggests that the market violates no-dominance and is incomplete.

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US junk bonds continue to post the highest trailing one‑year yields for the major asset classes, based on a set of ETFs through June 3. Roughly half of the funds are reporting payout rates above the current pace of annual consumer inflation.

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The US economy isn’t immune to the energy shock continuing to reverberate from the Middle East, but the fallout may be hard to spot in the upcoming second‑quarter GDP report. That, at least, is the message in current nowcasts.

The expected long-term total return for the Global Market Index (GMI) continued to tick higher in May, rising to the highest level in recent history. Although the annualized performance outlook has edged up to a mid-7% forecast, the current outlook remains well below GMI’s realized return over the trailing ten-year window.

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Most markets continued to rise in May, extending April’s bounce-back after March’s broad and deep selloff, based on a set of ETFs. The main exception among the major asset classes: commodities, which fell sharply, posting the first monthly decline this year.

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The Capital Spectator is taking an extended Memorial Day holiday and trading NJ for Italy for the week ahead. Postings will be light to (probably) non-existent during the interim. The US-based routine resumes again on June 2. Ciao!

● Yuppies: The Bankers, Lawyers, Joggers, and Gourmands Who Conquered New York
Dylan Gottlieb
Review via The Wall Street Journal
“Violent gentrification” is an eye-catching phrase akin to “Canadian depravity” or “Luxembourgish aggression.” If it exists, it isn’t obvious. In “Yuppies: The Bankers, Lawyers, Joggers, and Gourmands Who Conquered New York,” Dylan Gottlieb does his best to alarm readers about his subject and their nefarious doings, such as moving into dicey neighborhoods and turning them into havens for fragrant bakeries and adorable cafes.
The term “yuppie” is as closely tied to the 1980s as “hippie” is to the ’60s. Young urban professionals have usually been discussed in comic terms, by such writers as Tom Wolfe and P.J. O’Rourke, with gentle mockery or even wry affection. Mr. Gottlieb, a professor of history at Bentley University, produces nearly 300 pages on the topic without a trace of humor, except in quotation.

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