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Financial Metrics & Modelling

Internal Rate of Return (IRR) for Shipping Investments

Summary

Internal rate of return (IRR) is the discount rate at which the net present value of a specified series of investment cash flows equals zero.

Why this matters in ship finance

IRR supports comparison of fleet acquisitions, refinancings and retrofits but is vulnerable to differing scale and cash-flow timing.

The concept

Asset IRR uses cash flows before leverage; equity IRR uses sponsor contributions and net distributions after financing. Non-conventional cash flows can yield multiple IRRs, and the metric assumes no unique reinvestment rate in practice.

How it is used in practice

Set a clear investment date, capital contributions, working-capital needs, operating cash flows, debt flows where relevant, and disposal costs. Calculate and compare NPV at the relevant hurdle rate.

Analytical formulation

IRR solves

0=sum of dated cash flows(1+IRR)t0 = \frac{\text{sum of dated cash flows}}{(1 + \text{IRR})^{t}}

Use exact dates or a disclosed period convention.

Illustrative worked example

Illustration: an investment of EUR 10m followed by EUR 11m of net disposal proceeds after one year has IRR of 10%; add interim cash flows for a real vessel.

Practical issues

A high equity IRR may reflect leverage rather than stronger asset economics. Do not rank mutually exclusive investments by IRR alone where scale or timing differs.

How ShipFinance.ai uses this concept

ShipFinance.ai can structure this topic around a transparent, auditable record of formula inputs, time basis, scenario assumptions and debt/equity cash-flow reconciliation. A useful decision output is a base case beside a clearly labelled alternative case, with input sources, effective dates and the assumptions responsible for any change in financing capacity.

Key takeaways

  • Internal rate of return (IRR) is the discount rate at which the net present value of a specified series of investment cash flows equals zero.
  • Set a clear investment date, capital contributions, working-capital needs, operating cash flows, debt flows where relevant, and disposal costs.
  • A high equity IRR may reflect leverage rather than stronger asset economics.