ECO — Okeanis Eco Tankers Corp.

Okeanis Eco Tankers Corp. (NYSE: ECO / OSE: OET) — deep-value analysis

August 29, 2026 · reference price … (NYSE, yfinance 08:20) · market cap … · 39,044,655 shares · reporting and trading currency: USD

Primary sources: 20-F FY2025 (filed 03/20/2026, CIK 0001964954), 20-F FY2024, 20-F FY2023, 6-K from 08/04/2026 with unaudited H1 2026 financial statements (eco-20260630xex99d1/d2), the 424B5 prospectus from 01/21/2026, the internal data pack from 08/29/2026 and the research brief from the same day. Every figure below has its source next to it; where I used my own estimate, it says explicitly “my estimate”.

Executive summary

The thesis. Okeanis Eco Tankers owns and operates 18 modern oil tankers (8 VLCC, 10 Suezmax), all eco-design with scrubbers, with an average age of approximately 5.5 years, and runs them almost entirely on the spot market. In 2025 it collected … from voyage charters and only … from time charter (20-F FY2025, note 23) — meaning 98.1% of revenue comes from that day’s spot price. It is the purest exposure to crude oil freight rates in the listed universe, in both directions.

Over the last four quarters that rate has exploded. The fleet’s average daily TCE rate was …/day in 2025 and …/day in 2024 (20-F FY2025, Item 5, and 20-F FY2024); in Q2 2026 it was …/day (6-K 08/04/2026, TCE reconciliation). Quarterly net profit rose from … (Q2 2025) to … (Q2 2026), EPS from 0.84 to …. The stock rose from a low of … to … today (52-week high 67.81 — trading 1.4% off its all-time peak).

Estimated value. I built all models on a base of normalized mid-cycle owner earnings, not TTM. With 18 ships, ~6,500 operating days per year, a mid-cycle TCE of …/day (above the 2022–2025 average of …/day, well above the 2021–2025 average of …/day, and 70% below today’s spot), opex of …/day, G&A of …, cash interest of … and a fleet renewal reserve of …, this gives owner earnings of …/year, i.e. …/share.

From here, five triangulated models give an intrinsic value range of 22.78 – …/share, with a median MOS of ** …**. Monte Carlo (20,000 scenarios over the same DCF) gives a median intrinsic value of … and an undervaluation probability of 8.5%. My estimate of charter-free NAV (ship values estimated by me, not by a broker) gives …/share, so P/NAV ≈ 1.76× — for a tanker owner, at the peak of the cycle, this is an unusually expensive multiple.

Verdict: DO NOT BUY at …. Not because the business is bad — it is one of the best-run in the sector, with a cash break-even of ~…/day against a five-year average of …/day, 99.4% utilization and a refinancing track record that has cut the average margin from S… toward S…. But because today’s price is capitalizing the peak of the cycle as if it were the normal level. At … I am paying 14.3× normalized mid-cycle profit and 1.76× estimated NAV, in a business with no contractual moat, no backlog, 98% spot exposure and a global orderbook at a nine-year high (14.1% of the fleet, BIMCO November 2025, cited in 20-F FY2025).

There is a scenario where I am wrong: if rates remain structurally above …/day (the Russian shadow fleet permanently blocked, long transport distances maintained), the value rises to … and the stock is cheap. Monte Carlo gives it an 8.5% probability. I do not build a position on an 8.5% tail.

What would change the verdict: a price below ~… (a 40% correction, exactly as much as it rose in the opposite direction over 12 months), or confirmation of four consecutive quarters with TCE above …/day accompanied by long-term fleet contracting at elevated levels. I monitor, I do not buy.