What is the difference between a containership lessor and a liner operator?

A containership lessor, also called a tonnage provider, owns ships and charters them out to liner companies on fixed daily hire, often for several years. A liner operator charters most of its ships in from owners like these, runs scheduled services and sells container space to shippers at freight rates that move with the market. The lessor sells ship-days; the operator sells box slots.

Who carries container freight-rate risk, the lessor or the liner?

The liner operator carries it directly: its freight revenue follows the market within months while the hire it pays on chartered ships stays fixed for each charter term. The lessor is insulated while a charter runs. It meets the market when the charter expires and the ship has to be re-chartered, and through counterparty risk if a liner in a downturn cannot pay the hire.

Why does a lessor report TCE per day and a liner report freight per TEU?

Each reports the unit it sells. A lessor earns hire per ship per day, so it files time-charter equivalent per day: Danaos reported $35,892 a day on its container segment for FY2025. A liner earns freight per container, so it files average freight per TEU: ZIM reported $1,551 per TEU for FY2025. The two numbers sit on opposite sides of the same charter and cannot be compared or ranked against each other.

How is a time charter shown on each side of the balance sheet?

The lessor keeps the ship on its balance sheet as a vessel and books hire as revenue as it is earned; the contracted hire still to come is disclosed in the notes as future lease payments receivable, not recorded as an asset. The operator, under IFRS 16 or ASC 842, records a right-of-use asset and a lease liability for charters longer than a year, so its net debt is largely future charter hire.

Containership Lessors vs Liner Operators

Educational analysis for professional use. This guide is not investment advice or a recommendation to buy or sell any security, and it is not personalised.

The Lessor Sells Ship-Days; the Operator Sells Box Slots

Container shipping has two kinds of listed company that are easy to lump together and should never be screened together. A containership lessor, often called a tonnage provider, owns ships and charters them out to liner companies on time charters: a fixed daily hire for a fixed term, frequently several years. A liner operator runs the scheduled services. It charters in much of its fleet from lessors, owns some ships itself, and sells container space to shippers at freight rates that move with the market.

The two are joined by the charter. The hire that is revenue to the lessor is a cost to the operator. Everything else on this page, who carries the freight cycle, what each company files, how the contract appears in the accounts and which valuation tool fits, follows from which side of that contract a company sits on.

Who Carries Freight-Rate Risk

The operator carries it directly. Freight revenue reprices as contract and spot cargo roll over, so a fall in box rates reaches the income statement within months. The charter hire on the ships carrying those boxes does not fall with it: it is fixed until each charter ends. Revenue moves and a large block of cost does not, which is why liner margins swing so hard through the cycle.

The lessor is insulated while a charter runs, and exposed in two narrower ways. The first is re-charter risk. When a charter expires, the ship is fixed again at whatever the containership charter market pays at that date. That market follows liner earnings, because liners are almost its only customers, but it is a separate market from box freight indices such as the Drewry World Container Index, and the lessor meets it only one expiry at a time. The second is counterparty risk. A charter is only as good as the liner paying it, and a downturn that squeezes operators is exactly when a charterer is most likely to fall behind on hire or ask to renegotiate.

So the freight cycle reaches both companies, but on different clocks. The operator feels it this quarter. The lessor feels it as each charter rolls off, and through the credit of its customers in between.

What Each Files

Each company reports the unit it sells, and the units do not convert into each other.

	Containership lessor	Liner operator
What it sells	Ship-days on time charter	Container space on scheduled services
Headline earnings unit	Time-charter equivalent (TCE) per day	Average freight rate per TEU (twenty-foot equivalent unit)
Volume disclosure	Fleet, TEU owned, charter expiry schedule	TEU carried, operated capacity, share chartered in
Cost it controls	Vessel running costs per day	Charter hire, bunker fuel, port and terminal costs
Freight-rate exposure	At re-charter, and through charterer credit	Direct, as cargo reprices
The charter in its accounts	Revenue; future hire disclosed in the notes	Right-of-use asset and lease liability
Valuation tool	Contracted backlog plus residual ship value	Earnings through the cycle, lease-adjusted

Danaos is a lessor. At 31 December 2025 it had 75 containerships of 477,491 TEU chartered to liner companies, alongside ten Capesize bulk carriers, and it reported container-segment TCE of $35,892 a day for FY2025. That is hire per ship per day after voyage costs, the shipowner’s unit of account.

ZIM is an operator. At the same date it ran 128 vessels, only 16 of them owned; roughly 87.5% of its ships and 86.4% of its TEU capacity were chartered in. It reported an average freight rate of $1,551 per TEU for FY2025, defined as containerised cargo revenue divided by TEU carried. It files no TCE per day, because it does not rent ships out. Watch the unit when setting that figure beside a route index: the Drewry index is quoted per forty-foot box (FEU), and one FEU is two TEU. ZIM signed a merger agreement with Hapag-Lloyd on 16 February 2026; shareholders approved it on 30 April 2026, and as of ZIM’s second-quarter report (19 August 2026) the deal awaited regulatory approvals with a targeted close in the fourth quarter of 2026. The FY2025 figures describe ZIM’s own operating model before any combination.

The Same Charter on Two Balance Sheets

A time charter out is normally accounted for by the owner as an operating lease. The ship stays on the lessor’s balance sheet as a vessel, depreciated over its life, and hire is booked as revenue as it is earned. The years of contracted hire still to come are not recorded as an asset. They appear in the notes as a schedule of future lease payments receivable, the contracted backlog, and that schedule is where the lessor’s valuation starts.

The operator sees the mirror image. Under IFRS 16 or ASC 842, a charter longer than twelve months is capitalised as a right-of-use asset with a matching lease liability for the hire still to be paid; shorter charters can be left off the balance sheet and expensed. For an operator that charters in most of its fleet, lease liabilities become most of its debt. ZIM’s gross debt at 31 December 2025 was mostly lease liabilities for chartered ships, about $5.6 billion, against $2.8 billion of cash and deposits; with its other borrowings, that is how it reached reported net debt of $2,925 million.

The same stream of future hire is therefore an off-balance-sheet backlog on one side and a balance-sheet liability on the other. Read the lessor’s note to find what it has locked in; read the operator’s lease note to find what it has committed to pay.

One Charter, Two Sets of Accounts

The primer’s contracted-lessor example uses demonstration values: a containership fixed at $28,000 a day of hire, with $7,000 a day of running costs and 360 days on hire a year. Check current market prices when modelling.

On the lessor’s side, each ship contributes ($28,000 − $7,000) × 360 = $7.56 million a year before financing and overheads, for as long as the charter runs. If box freight rates fall by a third next quarter, that figure does not move. It changes only when the charter expires and the ship is fixed again, or if the charterer stops paying.

On the operator’s side, the same $28,000 a day is a fixed cost of $10.08 million a year per ship ($28,000 × 360), payable whether the ship sails full or half empty. The operator has to earn it back from freight on the boxes that ship carries, and when freight falls by a third, the revenue shrinks while the hire does not. One contract, one number: stable income for the lessor, a fixed charge for the operator that turns every move in freight rates into a larger move in its margin.

Which Valuation Tool Follows

A lessor is valued on its contracts and its ships. The contracted backlog is present-valued over each charter’s remaining term, net of running costs; after that, each ship is valued at what it can earn at market charter rates for the rest of its life, plus its scrap value at the end. The primer’s model discounts at 9.0% nominal as an illustrative default. In principle it lands where the charter-free fleet value in the NAV guide lands once that value is adjusted for charters fixed above or below the market rate. The questions that move it are how long the backlog runs, who the charterers are, and what the ships will fetch when the charters end.

An operator is valued on what it earns across a full freight cycle. The work is normalising freight to a mid-cycle level rather than a peak or a trough, setting that against charter hire, fuel and port costs, and testing whether freight still covers the charter bill at the low point. Two cautions apply. Asset value on the handful of owned ships says little about an operator whose fleet is mostly chartered. And if earnings are measured after IFRS 16 or ASC 842, charter hire has moved out of operating costs into depreciation and interest, so the lease liabilities belong in enterprise value; pairing lease-flattered earnings with debt that leaves the leases out understates the leverage.

For a lessor, the cash breakeven against contracted hire shows how much of the debt service is already covered. For an operator, the equivalent test is charter-hire coverage: how far freight can fall before the fixed hire is no longer paid out of operations.

Where the Comparison Goes Wrong

The commonest error is putting both in one screen. TCE per day and freight per TEU are different units measuring different businesses, and a table that ranks a lessor and a liner on either will mis-rank them.

A second is treating the lessor as free of the freight cycle. Long charters delay the cycle; they do not remove it. Re-charter rates follow liner earnings, and the backlog is worth what the charterers can pay. The spot vs time-charter guide covers how owners choose how much of the cycle to lock.

The third runs the other way: reading an operator’s net debt as if it were bank borrowing. For a liner that charters in most of its ships, net debt is largely hire it has committed to pay. It cannot be refinanced away, and it falls only as charters run off or ships are redelivered.