The Iran Succession Risk Nobody Is Pricing

Written by Mark Malek | March 06, 2026

Rising oil prices are only the first derivative of this geopolitical crisis. The real risk lies in how long it lasts.

KEY TAKEAWAYS

Oil prices have surged toward $90 as Middle East tensions intensify, representing a rapid and structural repricing of energy markets rather than a typical geopolitical tremor. The speed of the move reflects how unprepared markets were for a conflict that escalated gradually rather than through a sudden shock.
Prediction markets suggest a meaningful probability that the conflict will last for months rather than weeks. The longer the disruption persists, the more economic damage accumulates through higher energy prices, inflation pressure, and slower economic activity.
Iran’s leadership transition introduces a major geopolitical wildcard that could prolong instability. With hardline candidates dominating succession probabilities, the path to diplomatic resolution appears increasingly narrow.
Sustained oil prices near or above $90 could materially impact inflation expectations and eliminate hopes for near-term Federal Reserve rate cuts. This becomes particularly important given historically high equity valuations.
The economic and market impact of an extended energy shock would vary significantly by sector. Energy and defense may benefit while airlines, logistics, consumer discretionary, and rate-sensitive growth stocks face structural headwinds.

MY HOT TAKES

Markets consistently underestimate the duration risk of geopolitical conflicts. Price reactions initially focus on supply disruptions while overlooking how prolonged instability compounds economic damage.
Energy shocks remain one of the fastest mechanisms for transmitting geopolitical risk into inflation and monetary policy. A sustained increase in oil prices can quickly alter the entire macroeconomic narrative.
Political transitions inside adversarial regimes often produce more extreme leadership before moderation emerges. This dynamic can significantly extend the timeline for conflict resolution.
High-valuation equity markets are especially vulnerable when inflation reaccelerates and monetary easing disappears. Without the prospect of rate cuts, the justification for premium multiples weakens.
Market volatility during geopolitical crises often creates mispricing rather than permanent impairment of value. Long-term investors who maintain discipline can find attractive entry points in fundamentally strong companies.
You can quote me: “A ninety-dollar oil environment doesn’t just move commodities—it rewrites the entire inflation narrative.”

Well enough alone. The price of oil has spiked. There. Are you surprised? Of course you aren’t. We know that the price of oil is highly sensitive to the news cycle, especially if it involves friction in the Middle East. Sadly, friction in the Middle East is something that the markets deal with on a daily basis. Bots and traders are always scouting for a random news headline about escalation or deescalation in the region. Those moves are well understood and markets have become somewhat desensitized to the tremors as they have become so common.

This recent conflict is something different than what we have seen altogether. Rather than a flair-up, the current conflict slowly increased in intensity. I think of it like a lobster being placed in a pot of cold water set on a stove–the heat slowly increases without it realizing–until it is too late. The reason I used this irksome analogy is because I think the markets, for some strange reason, were taken a bit by surprise, which greatly intensified the reaction. Brent crude futures are trading close to $90 this morning. In case you forgot, Brent started 2026 in the high 50s. In fact, just a few weeks ago when I first shared my Iran conflict playbook (link here: https://blog.siebert.com/wargames-war-risk-and-wall-street), crude was around $67. I share three different scenarios of the possible conflict. Overnight/one-and-done, akin to last June’s Midnight Hammer, multi-week, and drawn out. Since then I have refined that to DEFCON 1, 2, and 3.

I penned that note at a time where the temperature was rising, though it wasn’t clear if it would ever reach a boiling point. And, this is one of those times, where I wish that I wasn’t right about how the ultimate conflict played out. This morning, it appears quite likely that markets are starting to factor in DEFCON 3–a drawn out conflict. When I originally shared my strategy with you, I assessed DEFCON 1 to have a high probability based on the administration's past actions and the predictions markets.

Not surprisingly, markets have been quite volatile this week as they attempt to digest the broad range of information flow–most of which is inconsistent. The “unknowns” have once again infected the markets. With that, I think it appropriate to dig into an updated playbook. First, take a look at the following chart of Brent Crude futures to get an idea of magnitudes.

This Crude chart tells you everything you need to know about how fast this repricing happened. WTI hit $89.47 this morning–beyond even the post-Ukraine invasion spike of 2022–coming off a base in the low $60s just weeks ago. That is not a geopolitical tremor. That is a structural repricing event. The Polymarket ceasefire data (on the chart that follows) is equally instructive, and frankly more important for the investment thesis. The probability of a ceasefire by March 6 is essentially zero. By March 15, only 10%. By March 31, 28% (red line). The number that should have your full attention is April 30 at 48% (purple line)--and that line is rising. What the market is quietly admitting is that there is a near-coin-flip chance this conflict runs well past April. And the critical question nobody seems to be asking is: what happens to the damage model if it does?

This is where I want to introduce an updated framework I have been thinking about carefully. Most of the analysis you are reading right now is focused on the first derivative of this problem–how many barrels per day are being disrupted and what that does to the spot price of oil. That is a reasonable starting point, but it is only the beginning of the math. The more important variable is time. When you multiply disrupted supply by duration, the cumulative economic damage becomes a completely different animal. And when you take it one level further, to what actually determines duration, you arrive at the Iranian succession question, which is the most under appreciated risk in this entire situation.

Khamenei is gone. 😵 The interim council is in place, and the IRGC is already pressuring the Assembly of Experts toward a hardline successor which is likely to be an extreme one. Don't take my word for it–the prediction markets are saying the same thing (check out the table that follows). Mojtaba Khamenei, the late leader's son with no clerical standing and full IRGC backing, is the current frontrunner at nearly 48%. The only relatively moderate option with meaningful odds, Alireza Arafi, sits at just 13.1%--and even he is no dove by any Western measure. The three names on that list who represent genuine moderation or reform–former president Hassan Rouhani, the Islamic Republic founder's grandson Hassan Khomeini, and exiled opposition leader Reza Pahlavi–combine for a grand total of 6.5%. And Rouhani, the man who actually negotiated the 2015 nuclear deal and is the most credible Western-facing figure on the entire list, was barred from even participating in the selection process back in 2024. He can't vote, let alone be chosen. The path to a negotiated resolution runs through names with single-digit odds. That is our DEFCON 3 scenario wearing a suit.

An AI-backtested probability model reported on Bloomberg adds yet another layer–giving the current clerical regime a 62.5% chance of remaining in control over the next 90 days. Reassuring at first glance, until you flip it around and sit with that 37.5% chance of regime collapse. And even if the structure holds, holding together and being ready to negotiate are two very different things.

History is instructive here. In conflicts of this nature, the first replacement tends to be the most radical, which makes them an immediate target, which resets the clock. The cycle moderates over time, but that process from extreme to negotiable doesn’t play out in weeks. It plays out over many months, potentially well into 2027. Trump himself acknowledged the uncomfortable truth this week when he said publicly that the worst case is you go through all of this and the person who replaces Khamenei turns out to be just as bad. That is not spin. That is the President telling you the exit ramp has not been built yet. 😰

Now run that timeline through the inflation math. Core PCE was already running at 3.0% year-over-year as of December–before a single missile was fired in this latest escalation. The initial oil spike alone adds roughly 50 to 60 basis points to headline PCE. Sustain $90-plus oil for 12 months and you are looking at cumulative inflationary pressure that pushes PCE toward 3.8% to 4.3%--right back into territory that freezes the Fed completely. Check out the basis for this math in my March 3rd blogpost / newsletter (https://blog.siebert.com/energy-shock-meets-ai-valuations) Rate cuts, which the market had been quietly pricing in for the second half of 2026, are now essentially off the table. That matters enormously when you are sitting on a market with a CAPE ratio last seen during the dot-com era. Side note: The S&P 500's cyclically adjusted PE ratio, aka, the CAPE, hit 40.2 in January 2026, a level only breached during the dot-com bubble of 2000. In the entire history of the index, it has traded this expensive less than 3% of the time (a story for another day 😉)

The sector damage from a long-duration energy shock is also not evenly distributed, and this is where your portfolio positioning needs updating. Airlines are the most acutely exposed. Jet fuel runs around 20 to 30% of operating costs, and there is no short-term substitute. When energy stays elevated for a year, carriers cut capacity, margins collapse, and the stocks follow. Petrochemicals face a similar structural challenge because their feedstocks are oil-derived and cannot simply be swapped out. Trucking and logistics are already reporting double-digit jumps in operating expenses. Consumer discretionary names get hit from two directions simultaneously–rising input and delivery costs from above, and a consumer who is watching their gas bill climb and quietly closing their wallet. High-growth tech, already stretched on valuation, loses its primary catalyst as the rate-cut narrative evaporates. These are not short-term trading calls. They are fundamental sector headwinds that compound the longer this drags on.

The updated playbook for a DEFCON 3 environment shifts meaningfully from what I shared in the original note. XLE remains the core energy position, but this is no longer a trade to be flipped in two weeks–it could be a 12 to 18 month hold. ITA belongs alongside it, not for the initial strike premium but for the sustained defense replenishment cycle that follows a prolonged conflict. TIPS deserve a real allocation now, not a token one, because the inflation protection they offer is precisely calibrated for this environment. GLD stays in the portfolio because a leadership vacuum in Tehran creates a sustained uncertainty premium that gold seems to feed on these days. On the other side, JETS is the clearest one to avoid. So is anything rate-sensitive that was pricing in a dovish Fed pivot.

None of this is cause for panic. Markets have absorbed oil shocks before–after Ukraine, after the Gulf War, after every conflict that felt unsurvivable in the moment–and each time, on a long enough timeline, they recovered and moved higher. Remember that lobster we talked about at the top? The water got hot slowly, and it will cool slowly too. The volatility that is coming will test conviction. There will be days that feel disorienting. But volatility is not the same thing as permanent loss, and the investors who confuse the two tend to make their worst decisions at precisely the wrong moment. Stay positioned, stay disciplined, and watch the Polymarket ceasefire curve. When that April 30 line starts breaking decisively higher, the relief trade will come fast. And tucked inside the turbulence ahead are genuine buying opportunities for the patient–in quality names that have been unfairly dragged down by the noise. This too shall pass. It just may take a little longer than the market originally thought.

YESTERDAY’S MARKETS

Yesterday was a painful day for equities as the realities of rising oil with the ongoing Iran conflict came home to roost, panicking traders. Later in the session reports surfaced that the administration would require permits to sell AI-related tech outside the US. As expected, tech–and everything else–took it straight in the gut. While stocks closed deeply in the red, they closed off the lows of the session. Another day of chaos caused by the news.

NEXT UP

Non-farm Payrolls (February) fell by -92k, far below estimate expecting 55k in gains, and below last month's 128k downward-revised print. Wake up Fed.
Unemployment Rate (February) rose to 3.8% from 3.7%, worse than expected.
Retail Sales (January) slipped by -0.2% after being flat in December.
Fed speakers today: Waller, Daly, Goolsbee, Paulson, Schimd, Miran Collins, and Hammack, but they have to all shut starting tomorrow, because they are in a press blackout ahead of the FOMC meeting.
Next week: more earnings and whole lot more including CPI, housing numbers Personal Income, Personal Spending, PCE Price Index, GDP, University of Michigan Sentiment, and JOLTS. You better check in on Monday to get your calendars–you won’t want to miss a single print next week–trust me.

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