Citadel Star Analyst: Understanding the Iran War — "Follow the Troops, Not Twitter"

The Middle East war is reshaping the global market landscape, yet most investors still haven’t fully grasped the depth and staying power of this crisis.

Citadel Securities analyst Nohshad Shah warned in his latest report that the scale of this geopolitical shock is enough to throw global growth and inflation trajectories off their established path, and that the market’s inertia-driven “buy the dip” mindset is seriously underestimating the consequences of a persistent energy price shock. His core takeaway is concise and to the point: “Follow the troops, not Twitter.”

Shah pointed out that a series of military developments—such as the U.S. latest announcement of deploying up to 10,000 additional troops to the region, Iran’s continued drone and missile attacks, and the Houthis’ threats to the Strait of Hormuz—all indicate that the conflict is still trapped in an escalation trap, with no sign of a way out.

For markets, the crisis’ impact has begun shifting from an inflation shock toward growth risk. Shah’s analysis shows that in the initial phase of the conflict (Feb. 27 to Mar. 25), interest rates and the U.S. dollar accounted for 56% of the tightening in financial conditions; but this structure has recently reversed, with risk assets driving 61% of the tightening, and last Friday’s intraday figure at one point reaching as high as 78%. This means the market’s pricing focus is shifting from an inflation narrative to a growth narrative, and bonds’ role as a hedging tool for risk assets is likely to be re-established.

Escalation trap: No good exit options

Shah characterizes the current situation as a “classic escalation trap”—both sides keep upping the ante, hoping that the final round of pressure will force the other party to back down, but each escalation is interpreted by the other side as aggression, triggering a larger-scale countermeasure, with the intensity of violence continuing to rise until it exceeds the strategic benefits the war originally offered.

The Strait of Hormuz is a critical chokepoint for global energy trade; placing it under Iran’s effective control is unacceptable to the U.S. and most countries. At the same time, Iran’s regime is also unlikely to accept any ceasefire proposals put forward by the U.S. in the absence of security guarantees. Shah believes this structural dilemma makes it difficult for the conflict to end in the near term.

He emphasized that this crisis is fundamentally different from last year’s tariff shock—tariff shock is unilateral and financial in nature, whereas this involves disruption to real-world energy infrastructure and global trade supply chains, with repair and recovery timelines potentially lasting months or even years.

Central bank dilemma: Stagflation risk emerges

Shah said the conflict poses a major challenge for central banks worldwide, marking a fundamental shift in the policy narrative compared with before the conflict.

The current macro backdrop is starkly different from 2022: the starting point for policy rates is higher, there’s no post-pandemic reopening demand release, excess savings have largely been used up, and global coordinated fiscal stimulus is also unlikely. Against this backdrop, the real risk is that growth gets badly hit while inflation continues to move higher—namely, stagflation.

So far, markets have priced in within-year rate hikes by the ECB and the Bank of England to near three times, while the Federal Reserve is expected to pause rate cuts. But Shah warned that if central banks are forced into aggressive tightening to curb an inflation-expectations spiral, it may instead intensify economic and financial stress and produce highly uncertain second-round effects. His conclusion is: under any scenario—whether central banks tighten proactively or an energy shock passively drags the economy down—as long as the war continues, demand destruction will occur.

Energy is AI’s Achilles’ heel; bonds regain their hedging value

Shah specifically pointed out that the AI theme faces unique vulnerability in this crisis, because its core pillar is energy. Damage to real-world infrastructure, rising power reliability premiums, security risks at Middle East data centers, helium shortages, and broader supply-chain disruptions collectively create multiple layers of pressure on the AI investment narrative. He said clearly: “We haven’t gotten out of this predicament yet.”

Shah also observed that the stock-bond correlation hit extreme readings—its 21-day rolling correlation coefficient once reached -0.95 (stocks fall, bonds fall, i.e., yields rise). In history, such extreme values often signal a turning point in macro mechanisms.

As growth concerns gradually come to dominate market pricing, Shah has clearly adjusted his prior stance. He said that previously he leaned toward being bullish on yields because the market broadly shorted the tail risk of inflation; but now that valuations have adjusted to a new level, the feedback transmission of rising energy prices weakening growth has become more substantial. Against this backdrop, long-duration fixed-income assets should start regaining their role in hedging risk assets.

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