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Invesaro publishes investment theses and settles them against the market in public: with a date, a basket of companies and a verdict.

Investment thesis

Iran and Oman are negotiating a corridor through Hormuz, and the bottleneck is not warships but mine hunting robots

LivePublished August 26, 2026150-day horizongeopolitics
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In short

  1. What is happening
    Iran and Oman are discussing a joint shipping corridor through the Strait of Hormuz together with a mine clearing mission.
  2. Why it matters
    Reopening Hormuz requires lanes certified clear of mines, and the West retired its minehunters: the scarce asset is unmanned mine countermeasures.
  3. What must hold
    Assumptions are statements that must stay true for the thesis to make sense.
    Assumptions: 4. See the assumptions
  4. When is the verdict
    The horizon is the time we give a thesis. That many days after publication we settle it: we compare the basket of companies with the market benchmark and give a verdict.
    January 23, 2027, 150 days after publication
  5. Our score at publication
    A score from 0 to 100 given on the day of publication, before the market has verified anything. On the results page we check in public whether higher-scored theses do better.
Basket return
-3.0%
equal weight, since publication
The market over the same window
-1.2%
benchmark for this basket
Edge over the market
-1.7%
in percentage points

Companies in the basket

The argument

Every Hormuz trade the market knows how to put on is a bet on the cargo: crude, tankers, methanol, LNG. The detail buried in this week's Iran and Oman discussions is different, and it is operational rather than commercial. The talks are not only about a corridor, they are about a mine clearing mission. That single word changes the sequence of events. A strait is not reopened by declaring it open, and it is not reopened by escorting convoys. It is reopened when a hydrographic and clearance authority can certify that a specific lane, at a specific width and depth, has been swept and hunted. Until that certificate exists, war risk underwriters price the passage as if the mines are still there, and the ships behave accordingly.

The structural problem is that the West spent twenty years dismantling the capability that produces that certificate. Dedicated mine countermeasures hulls are slow, single purpose and unglamorous, so they were the first thing cut. The Royal Navy has run down its Hunt and Sandown fleet, the US Navy has been decommissioning the Avenger class, and European navies followed the same logic. The official replacement everywhere is the same concept: instead of a purpose built minehunter, you deploy a container sized toolbox of unmanned surface vessels, autonomous underwater vehicles, synthetic aperture sonars and expendable disposal drones, launched from whatever ship or pier is nearby. The concept works. The problem is that very few companies actually have it certified, in service and in serial production, and the ones that do are booked.

What this thesis rests on

Each one is a statement that has to be true. We go back to every live thesis on a schedule and check these against public sources, so each leg carries either what we found or the date we look next.

Archive: reviews of this thesis are paused. Last review September 23, 2026.

  1. At least one navy or defence ministry awards a new unmanned mine countermeasures contract to Exail, Kongsberg or Saab, announced before 31 January 2027.

    competitive · Open

    Checked September 23, 2026, nothing published either way

  2. Exail Technologies delivers at least one additional mine countermeasures toolbox or rMCM vessel system to the Belgian and Dutch programme before 31 January 2027.

    operational · Open

    Checked September 23, 2026, nothing published either way

  3. Kongsberg Gruppen reports order intake in its Discovery segment at least 15% above the prior year level in the two quarterly reports following publication.

    financial · Open

    Checked September 23, 2026, nothing published either way

  4. Exail Technologies reports an adjusted EBITDA margin above 15% in its full year 2026 results.

    financial · Open

    Checked September 23, 2026, nothing published either way

Show the causal chain step by step
  1. Hormuz mine clearing mission on the table
  2. Western minehunter fleets retired
  3. Lanes must be certified clear before shipping returns
  4. Clearance done by unmanned toolboxes, not crewed hulls
  5. Baltic and Black Sea demand already books the same capacity
  6. Order intake concentrates in a three supplier field
  7. Exail, Kongsberg and Saab

This thesis, over time

What has happened since publication. Every entry is computed as of its own date, from price history.

October 2, 2026

Day 38 of 150: basket -3.0%

The first quarter of the horizon is behind this thesis. The equal-weight basket stands at -3.0% since publication day. The benchmark (S&P 500) returned -1.3% over the same window, so the basket trails its market by 1.7 percentage points. The strongest contributor is EXA (-0.1%), the weakest is SAAB-B (-5.9%). 112 days remain until the verdict.

September 23, 2026

Review on day 28: nothing moved

We went back to this thesis on day 28 of 150 and checked each of its 4 assumptions against public sources. No news either way: 4. The equal-weight basket stands at -3.0% since publication day. The benchmark (.INX) returned -1.2% over the same window, so the basket trails its market by 1.7 percentage points. 122 days remain until the verdict.

September 9, 2026

Review on day 14: nothing moved

We went back to this thesis on day 14 of 150 and checked each of its 4 assumptions against public sources. No news either way: 4. The equal-weight basket stands at -3.5% since publication day. The benchmark (.INX) returned -0.0% over the same window, so the basket trails its market by 3.4 percentage points. 136 days remain until the verdict.

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This is analysis, not investment advice and not a recommendation to buy or sell anything. We publish it and track it in public, mistakes included. Any decision is yours and yours alone.