Siebert Blog

The Hormuz Toll Booth

Written by Mark Malek | April 23, 2026

The market wants resolution. The fine print says something else. Energy-sensitive businesses and consumers may be paying a shadow tax for much longer than investors expect.

KEY TAKEAWAYS

  • The ceasefire extended a pause in open conflict, but it did not restore free movement through the Strait of Hormuz. Iran is still controlling transit conditions, and that means the chokepoint remains economically disruptive.

  • The real inflationary mechanism is not just higher crude prices. It is the added insurance, routing, and shipping cost that moves quietly through supply chains and into consumer prices.

  • Roughly twenty million barrels per day normally move through the strait, making any disruption globally significant. Mines, transit controls, and delayed clearance create a structural bottleneck rather than a brief shock.

  • Southwest’s earnings showed how even a relatively healthy airline can take a major hit from fuel costs. Spirit showed the far uglier version, where a fuel spike can overwhelm a fragile balance sheet and break a restructuring story.

  • Market resilience and consumer resilience are real, but they are not the same as immunity. Positioning now depends on distinguishing between companies that can pass costs through and those that quietly absorb margin damage.

MY HOT TAKES

  • The market is treating a ceasefire extension like a full normalization event, and that is too generous. A signed document does not undo a live supply-chain chokepoint.

  • The most important inflation risk is no longer the obvious one flashing on the commodity screen. It is the less visible pass-through cost that spreads across nearly every oil-linked business.

  • This environment rewards selectivity, not blind optimism. Pricing power matters more when costs are sticky and the Fed has less room to rescue everyone.

  • The Fed’s old habit of treating energy shocks as temporary becomes much harder to defend when the disruption is embedded in logistics and maritime risk. This looks less like noise and more like structural repricing.

  • Investors should focus less on whether the consumer is still standing and more on who is eating the bill. That is where the next round of earnings separation will show up.

  • You can quote me: “This isn’t an energy spike—it’s a margin squeeze in slow motion.”

 

Shadow tax. It may not be obvious to you, but I actually have a private life. I have at least an hour and a half a day outside work and my 4 hours of sleep to spend time with my family–eat, watch a streamed show (usually 3 seasons behind) with my wife, walk Eloise–my pup, and catch up with my kids. I try my hardest NOT to look at financial news–though you know that is not reality. All joking aside, I really do try to extract myself from the markets and the news for at least some chunk of every day, so I can get some perspective–like a normie–a regular not-Wall-Streeter life.

 

Imagine that–me–a normie. I would hear from my Mother-in-law–my oracle of all things–that the markets are at all-time highs. She would surely mention SpaceX, the ceasefire, and how much money she managed to save with her groceries–despite burning 10 gallons of gas driving between every grocery store and big box store within 20 miles of her home. Interestingly–that 10 gallons of gas doesn't come cheap these days. But she heard that prices are going to come down now that the ceasefire was extended and crude oil is off its recent highs. So, all good, and I would buy that–especially from her. She quite literally has 4 TVs running in her home–24 hours a day, 7 days a week, all on various news channels–all at what seems like 100 volume! In my normie-life I would feel… well, OK about all of that, especially the stuff about the markets hitting all-time highs. But, alas, I am not a normie after all. Get ready.

 

Here is what the mainstream narrative is right now. There is a ceasefire. The Strait of Hormuz is technically open. Brent crude pulled back from its recent highs. Peace talks are ongoing. And the market–ever the optimist– has already started pricing in a resolution. The headline narrative is: the worst is behind us. I want to respect that narrative for exactly one sentence, because here is where it falls apart.

 

The ceasefire extended the pause. It did not reopen the strait. Iran's Islamic Revolutionary Guard Corps is still controlling which ships get transit certificates and which ones get turned back. Just this week, Iran seized two container vessels that attempted to cross without what Tehran considers “proper authorization.” Brent crude closed above $101 a barrel on Wednesday for the first time in more than two weeks, and is edging lower this morning only because traders are hoping the stalled peace talks somehow break open. The ceasefire is a document. The Strait is still a chokepoint. And those are not the same thing.

 

Here is the number nobody is talking about. In peacetime, the Strait of Hormuz moves approximately twenty million barrels of oil per day–roughly a quarter of all global seaborne oil and liquefied natural gas trade. Right now, none of it is moving freely. Iran's IRGC has laid confirmed mines in and around the strait. Not rumored mines. Confirmed mines. And the Pentagon just briefed Congress that fully clearing those mines will take up to six months, and that no clearing operations can begin until the war is formally over. The war is not over.

 

But here is the layer even deeper than the mines. Even on the days the strait is technically open, it is not freely open. Ships that want to transit must apply for an IRGC-issued transit certificate, follow a route designated by Tehran, and prove their cargo has no connection to hostile nations. That is a toll booth on the world's most critical energy chokepoint, staffed by the Iranian Revolutionary Guard. And almost nobody in the financial media is explaining what that actually costs.

 

The shipping industry is pricing that risk in real time. Maritime insurance premiums for vessels crossing the strait have risen to 2% - 5% of hull value per voyage. On a large crude carrier worth over $100 million, that is a $2 - $5 million premium…per trip. Those costs do not disappear. They pass through the supply chain, through refiners, through distributors, through retailers, and they land in your shopping cart. This is the shadow tax. The headline is oil above one hundred dollars. The real story is the insurance premium pass-through, because that is the mechanism that turns an energy spike into a structural consumer cost. And structural consumer costs are exactly what the Fed cannot call transitory.

 

You want to know how I know this is already bleeding into the real economy? Let me show you two airlines, one that survived the first round, and one that might not survive the second.

 

Southwest Airlines just reported Q1 2026 results. The headline is genuinely good with net income of $227 million, record operating revenues of $7.2 billion, and double-digit unit revenue growth. CEO Bob Jordan called it a turning point for the airline. And he is right about the transformation. But here is the fine print. Fuel cost Southwest $2.73 per gallon in the first quarter, well above their guidance of $2.40, creating a $164 million headwind in a single quarter. That’s a $0.22 drag on earnings per share in ninety days. And for the second quarter, Southwest is now guiding jet fuel at $4.10 to $4.15 per gallon based on the forward curve. That guidance is what sent the stock down more than -4% in after-hours trading on Wednesday. Not the profit. The fuel forecast. Southwest is a well-run airline with a real transformation story. The Hormuz lock is making it a harder story to tell.

 

Spirit Airlines did not have that cushion. Spirit, which filed its second Chapter 11 bankruptcy in August of last year, was working its way through a restructuring plan built on the assumption of normal operating conditions. Then jet fuel roughly doubled after the Iran conflict escalated in late February. JPMorgan ran the numbers and published them: if fuel stays near $4.60 a gallon, Spirit's projected operating margin for 2026 goes from 0.5% to -20%. That is not a reorganization plan. That is a math problem with no solution. Spirit reportedly faces an additional $360 million in fuel costs, which is more than the $337 million in cash it had on its balance sheet at year-end. The airline is now in advanced talks with the Trump administration for a $500 million emergency bailout, with the federal government potentially taking up to a 90% equity stake in return. Transportation Secretary Sean Duffy put it bluntly on television this week: this may be good money after bad. That is what the Hormuz lock looks like with the labels on.

 

Here is the implication the Fed does not want to talk about. The entire post-pandemic disinflationary narrative was built on one core assumption: that energy costs would moderate as supply chains normalized. The Fed called energy spikes transitory in 2022, and they were almost right. Almost. Because in 2022, the Strait of Hormuz was open. Ships moved freely. Insurance premiums were manageable. Now the strait is mined, the IRGC is running a toll booth, and the Pentagon is telling Congress full clearance will take six months after a war that is not yet over. That is not a transitory supply disruption. That is a structural repricing of every supply chain that touches oil which, when you think about it, is every supply chain on earth.

 

So what do you actually do with this? Here is where I want to bring it home. The market is not wrong to look past some of the noise. Quality companies with pricing power–the ones that can pass elevated costs through to customers–are demonstrating exactly that in this earnings season. Banks just posted their best quarters in years. Demand is, by most measures, holding. The consumer is resilient in ways that would genuinely surprise the doom-and-gloom crowd. My mother-in-law driving ten gallons worth of circles to save $20 on groceries is not a sign of a broken consumer, it is a sign of a very determined one.

 

But the informed investor does not mistake resilience for immunity. The shadow tax that the Hormuz lock is imposing on every supply chain is real, it is measurable, and it is not going away on the schedule the market has priced. Energy-sensitive businesses with thin margins like airlines, logistics companies, manufacturers running just-in-time supply chains, are absorbing costs that will either compress their margins or get passed through to you. Probably both. That means positioning matters more right now than narrative. Energy exposure that is selective and intentional, not accidental. Companies with real pricing power versus those that are quietly eating the difference. Fixed-income duration that reflects the honest possibility that the Fed's hands are tied longer than anyone wants to admit.

 

The Strait of Hormuz is not closed. It is taxed. And a twenty-million-barrel-per-day toll booth run by the IRGC is not an energy spike. It is a structural inflation reset dressed up in ceasefire language. My mother-in-law's four televisions will keep telling her the worst is behind us. And maybe it is. But the informed investor–the one who actually reads the fine print on the Southwest earnings release, who knows what a maritime insurance premium does to the price of everything–positions first and celebrates later. You are now that informed investor. 😉

 

YESTERDAY’S MARKETS

Stocks surged on Wednesday as the S&P 500 rose by 1.05%, a fresh record, while the Nasdaq jumped by 1.64%, also a new all-time high, and the Dow gained 0.69%, adding 340. The rally was driven by the President’s extension of the Iran ceasefire and a strong earnings season, with roughly three out of four S&P 500 companies beating expectations so far. Brent crude closed above $101 a barrel, up more than 3% on the session–as Iran seized two container ships in the Strait of Hormuz. The 10-year Treasury yield closed at 4.30%, and gold settled above $4,750 an ounce, recovering from Tuesday's dip.

 

NEXT UP

  • Initial Jobless Claims (April 18th) came in at 214k above estimates and last week’s 108k claims.

  • S&P Global Flash Manufacturing PMI (April) may have inched higher to 52.5 from 52.3.

  • S&P Global Flash Services PMI (April) probably climbed to 50.6 from 49.8.

  • Important earnings today: Blackstone, Thermo Fisher Scientific, Dow Inc. Honeywell, PulteGroup, Lockheed Martin, PG&E, Comcast, Amex, Keurig Dr Pepper, NextEra Energy, Union Pacific, VeriSign, Intel, Newmont, and Baker Hughes.