Tanker deck at night under a clear starfield

Key takeaways

  • Freeze the commercial requirement before comparing vessel populations.
  • Separate fleet stock, potential candidates and confirmed commercial opportunities.
  • Apply the same treatment to uncertain openings and repositioning assumptions.
  • Explain changes in the counting rules before attributing differences to supply.

The framework below is an original comparison method. It contains no current fleet figures or named available vessels. Actual vessel suitability, opening and participation in an enquiry require the relevant current evidence and assessment.

Decide which supply question the comparison answers

A strategic fleet comparison and a near-term chartering comparison address different questions. The former may concern the stock or composition of ships under a statistical definition. The latter concerns candidates that could serve a particular programme under actual timing and suitability constraints.

Do not use a strategic total as though it were a list of current alternatives. Equally, do not infer a change in the whole fleet from a smaller shortlist for a particular enquiry. The commercial requirement may have changed while the fleet population remained the same.

State the question in the comparison title. “Candidates for the defined loading window” is more precise than “available supply” when the analysis concerns a specific programme. A historical fleet comparison should identify the measure and observation dates rather than implying present commercial availability.

The decision should determine the unit. Vessel count may help describe the number of candidates, while a capacity measure answers another question. Neither unit should be substituted for the other merely because it makes one group appear larger.

Freeze the eligibility rules before counting

Define the cargo and employment requirements that determine inclusion. These may concern the vessel characteristics, commercial opening, relevant geography and acceptance work that the actual enquiry requires. Avoid claiming that a broad class label alone establishes suitability.

Apply the same rules to both groups. If one regional list includes speculative repositioning candidates while another includes only confirmed openings, the totals are not directly comparable. The difference may reflect the analyst's inclusion policy rather than the commercial opportunity set.

The window also needs a common definition. A broad future period will usually permit consideration of different candidates from a narrow immediate window in the same fictional selection exercise. That does not establish a market trend; it describes a changed question.

Retain the rejected or unresolved status of a candidate where it matters to the comparison. Removing uncertain names from one list while retaining them in another can create a false appearance of supply imbalance.

Use a comparison table that preserves uncertainty

The following table sets out the fields to reconcile before drawing a conclusion. It is a proposed editorial method, not a vessel acceptance procedure.

Comparison fieldCommon basis requiredWhy a difference matters
Commercial programmeSame cargo and employment scopeDifferent requirements create different candidate sets
Time windowSame defined opening or service periodA wider window can admit additional possibilities
Vessel eligibilitySame inclusion and exclusion rulesA class label can conceal relevant differences
GeographySame treatment of local and repositioning candidatesPotential arrival is not the same as confirmed opening
Evidence statusSeparate confirmed, conditional and unverified entriesUnequal certainty distorts the apparent choice
Identity handlingUnique vessels with reconciled duplicate reportsMultiple reports must not become multiple ships
Observation dateComparable evidence cut-offA newer list may reflect more information rather than more supply

Keep uncertainty visible in the output. A single combined total can conceal a group dominated by conditional candidates. Showing the categories separately helps the reader understand which alternatives can support immediate action and which require further work.

Do not turn the table into a claim that every listed candidate will quote. Commercial willingness and actual terms still need evidence. The comparison describes the defined set at its stated confidence level.

Distinguish fleet identity from commercial opportunity

UNCTADstat lists annual merchant-fleet series by registration, ownership and ship type. UNCTADstat Data Centre

For a statistical comparison, use the relevant source definition and period. Registration and ownership categories should not be treated as interchangeable simply because both describe a fleet. Check the actual dataset documentation before comparing figures drawn from different classifications.

For an enquiry comparison, maintain a separate candidate record. A vessel's inclusion in a broad fleet population does not establish its commercial opening, suitability or willingness to participate in the proposed employment. The analyst needs additional enquiry-specific evidence.

This separation prevents the report from overstating what a reliable dataset can answer. Broad statistics can provide context without becoming a substitute for the current commercial assessment.

Fictional case: unequal lists create a false advantage

Imagine a fictional chartering team comparing candidate supply in two possible loading areas. The first list includes vessels already discussed with counterparties and ships that might reposition if several assumptions hold. The second list contains only recently confirmed commercial openings.

The initial report calls the first area better supplied because its combined list is longer. That conclusion ignores the unequal evidence standard. Many entries in the first list depend on timing and commercial conditions that have not been confirmed.

The team rebuilds the comparison using the same categories. Confirmed opportunities remain separate from conditional candidates, and duplicate vessel reports are reconciled. Repositioning candidates retain their assumptions rather than being treated as certain arrivals.

The corrected review does not automatically favour either area. It explains where immediate options exist and where additional evidence could expand the choice. The commercial decision can now consider the cost and feasibility of changing the loading area alongside the quality of the available alternatives.

Interpret changes in the comparison carefully

A shortlist can grow because new evidence arrives, because the window widens or because the eligibility rules change. Those developments have different meanings from a genuine increase in the relevant vessel population.

When comparing successive reviews, build a bridge between the lists. Identify newly confirmed candidates, withdrawn opportunities, revised assumptions and changes in scope. A simple increase or decrease in the total cannot explain all of those mechanisms.

Preserve the earlier definition when analysing change. If the commercial programme has materially changed, consider presenting a new comparison rather than describing it as a continuation of the old series. Otherwise the report may create a trend from unlike observations.

The conclusion should state what the evidence supports. It may support a wider set of enquiries or a need to confirm conditional candidates, rather than a broad claim about the direction of freight prices.

Connect the comparison to a feasible action

A better supply comparison should change what the desk investigates or decides. It can identify whether an alternative window deserves enquiry, whether a candidate requires suitability review or whether a speculative repositioning assumption needs confirmation.

Do not treat a larger apparent candidate set as sufficient reason to change the cargo programme. The alternative may involve different receiving constraints, costs or commercial terms. Fleet supply is one part of that decision.

State the next evidence requirement and the condition that would change the preference. The comparison is most useful when it narrows the uncertainty facing the actual enquiry rather than producing a broad market label.

Common mistakes

Comparing confirmed openings with a speculative longlist. Apply common evidence categories before interpreting the totals.

Mixing vessel counts and capacity measures. Preserve the unit and explain what question it answers.

Counting reports rather than unique vessels. Reconcile identity so repeated information does not inflate the candidate set.

Calling a changed definition a supply trend. Explain changes in window, scope and eligibility separately from changes in the underlying set.

Where Zeaclub fits

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Educational information only; not legal, financial or trading advice. Contract wording and applicable rules control. Verify current requirements and obtain qualified advice before acting.

Frequently asked questions

Is the larger vessel list always the better-supplied option?

No. Compare eligibility, timing and evidence status. A long conditional list may provide fewer actionable alternatives than a smaller confirmed set.

Can global fleet statistics support a chartering review?

They can provide context within their definitions. A particular enquiry still needs current evidence about relevant candidates and commercial opportunities.

Should repositioning candidates be excluded?

Not automatically. Include them separately with explicit timing and commercial assumptions, applying the same treatment across the comparison.

Why reconcile duplicate reports?

Several reports may concern the same vessel. Counting each report as a separate candidate exaggerates the apparent set of alternatives.

What should the comparison lead to?

A specific commercial or evidence-gathering action, such as confirming an opening or testing an alternative window. Avoid drawing conclusions broader than the comparison supports.

Primary sources