The headline said ceasefire. The stock market heard it and rallied. The tankers didn't move.
TL;DR: A US-Iran ceasefire agreement sent equities higher on April 9th — energy stocks pulled back on the relief trade, tech and broader indices climbed. But a site called ishormuzopenyet.com, built by Montana Flynn, tells a different story: active vessel transits through the Strait of Hormuz are still down roughly 95% compared to the same period last year. The diplomatic signal and the physical reality are pointing in opposite directions. That gap is where the risk lives.
Why this matters
About 20% of the world's oil passes through the Strait of Hormuz. That's not a fun fact — it's the single most important chokepoint in global energy supply. When it's restricted, energy prices move, freight costs spike, and anything downstream of those two things — which is most of the economy — eventually feels it.
The ceasefire between the US and Iran got a lot of attention. Reasonably so. But anyone watching actual shipping data rather than diplomatic press releases is seeing something much more cautious: operators aren't sending vessels through at anything close to normal rates. Whether that's lingering insurance risk, unresolved operational agreements, or just the standard lag between politics and logistics, I can't say with certainty. But a 95% drop in active transits is not a soft signal. That's essentially a closed strait with a press release saying otherwise.
I'm not a geopolitical analyst. But I've spent years in logistics operations, and one thing I know: physical flows don't lie. Agreements get priced in immediately. Reality catches up more slowly — and sometimes in the opposite direction.
Is the Strait of Hormuz actually open after the US-Iran ceasefire?
Formally, yes. Practically, not really — or at least not yet.
The ceasefire framework removes the explicit threat of Iranian interdiction of commercial vessels. That's meaningful. But removing a threat and restoring confidence in a shipping lane are two different things. War risk insurance premiums haven't normalized. Shipping operators make decisions based on actuarial reality, not political announcements. Until underwriters lower premiums and operators restart normal routing, the strait functions as restricted regardless of what any agreement says.
Montana Flynn's tracker at ishormuzopenyet.com is pulling live vessel movement data and comparing it to historical baselines. As of the data visible this week, we're at roughly 5% of normal traffic levels. You should go look at it yourself — it's a better signal than any news headline right now.
How did markets react on April 9th, 2026?
The pattern on and around April 9th was consistent with a classic geopolitical relief trade: broad indices moved up on reduced tail-risk pricing, energy names gave back some of their risk premium, and SaaS and tech — which had been under pressure from rate uncertainty and general macro anxiety — saw a modest rotation back in. Reports from that day confirm the rally was driven largely by the ceasefire announcement reducing the perceived probability of a sustained supply disruption.
The important caveat: this kind of relief rally is fragile. It's priced on the assumption that the agreement holds and normalization follows quickly. If shipping data continues showing near-zero transit activity, that assumption starts to crack. Oil supply expectations get revised. Energy prices reprice. And anything that rallied on the relief thesis has to reprice too.
This is personal observation, not financial advice — I hold positions across energy and broader equities and I'm watching this closely, but nothing here should be read as a recommendation.
What most people get wrong about geopolitical risk and markets
The common mistake is treating a geopolitical resolution as a binary event: risk on, risk off, move on. The actual dynamic is messier.
Geopolitical risk has two layers. The first is the announcement layer — this gets priced almost instantly, often overshooting in both directions. The second is the operational layer — what actually happens to physical flows, supply chains, inventory buffers, and downstream costs. This takes weeks to months to fully show up in earnings and economic data.
Right now we're in the gap between those two layers. The market has largely priced the announcement. The operational reality — a strait at 5% of normal traffic — hasn't fully transmitted yet. That lag is where positioning decisions get interesting, and also where they get dangerous if you're not paying attention to the right data.
SaaS companies being the notable exception to the rally makes sense in that context. They don't have direct energy exposure, but rate sensitivity and macro sentiment still move them — and the macro picture isn't actually resolved yet, it's just paused.
Markets price agreements. Ships price reality.
What to actually do
- Watch the transit data, not the headlines. ishormuzopenyet.com is the most honest signal I've seen on this. Bookmark it and check it weekly. When transit volumes start recovering materially — say, above 40-50% of historical — that's a real signal, not just a diplomatic one.
- Don't chase the relief rally if you missed it. Relief trades are fast and thin. The asymmetric opportunity is in understanding what hasn't been priced yet — specifically, what happens if normalization takes three months instead of three weeks.
- Energy sector divergence is worth watching. Integrated majors with diversified supply vs. names heavily exposed to Gulf routing will behave differently if restrictions persist. Worth knowing what you own and why — and again, this is how I'm thinking about it personally, not a recommendation.
- Freight and logistics names are the canary. Before oil prices fully reprice, shipping and logistics operators will show the stress in earnings guidance and spot rates. I wrote more about supply chain dynamics and their second-order effects in the context of operations in my logistics and product work — the same patterns apply here.
- Scenario-plan both directions. If the strait normalizes within 4-6 weeks: energy gives back the risk premium it's held, broad market continues the relief move. If transit data stays suppressed past mid-May: energy reprices upward, rate volatility returns, and the Q2 earnings revision cycle gets uncomfortable for companies with thin margin buffers.
- This is not financial advice. Seriously. I'm sharing how I'm thinking through it, not telling you what to do with your money. Your situation, tax position, and risk tolerance are yours — consult someone qualified if you're making significant moves.
The strait is technically open. The data says otherwise. At some point, one of those things has to give.