Sustainability-linked loans and bonds tie pricing to whether a borrower hits a Sustainability Performance Target (SPT). The whole structure only has integrity if that target is genuinely ambitious. This calibrator quantifies the ambition of a single KPI against the two tests that arrangers and verifiers care about: your own past trajectory and an external benchmark.
How it works
The tool measures the proposed improvement and compares it on two axes:
proposed improvement = (target − baseline) / baseline (sign-adjusted for direction)
BAU improvement = (latest − historical) / historical (your own run-rate)
ambition ratio = proposed improvement / BAU improvement
A KPI is flagged Pass only when it beats business-as-usual, beats the sector benchmark, and reaches an ambition ratio of at least 1.5x. It is flagged Refer when it meets some but not all tests, and Fail when the target is not even an improvement on the baseline. The direction toggle handles both decrease KPIs (emissions, water, accident rate) and increase KPIs (share of renewables, recycled content).
What makes an SPT fail the ambition test
SPT failures come in three practical forms that this tool is designed to catch before a verifier or arranger raises them:
Failing to beat business-as-usual. If a company has been reducing Scope 1 emissions by 8% per year for the past three years, an SPT of 8% per year over the next three is merely continuing the existing trend. That is not ambitious under the LMA SLL Principles — it is the definition of BAU. The ambition ratio catches this: a ratio at or below 1.0 means the target does not exceed what the company was already doing.
Falling short of the sector benchmark. Even if the target beats the borrower’s own trajectory, it may still represent below-average performance for the sector. A company starting from a high-emission baseline and reaching the sector average is not demonstrating leadership — it is catching up. The sector benchmark comparison captures whether the SPT is ambitious relative to peers, not just relative to the borrower’s own history.
Setting a target that runs in the wrong direction. For decrease KPIs (emissions intensity, water use, accident rate) the target must be lower than the baseline. The direction toggle ensures the sign of the improvement is handled correctly and that a target set in the wrong direction is flagged Fail immediately.
Worked example
Suppose Scope 1 and 2 emissions of 100,000 tCO2e are targeted to fall to 75,000 tCO2e over three years — a 25% reduction. If the borrower’s own recent trajectory was a 17% reduction over the same window and the sector benchmark for the period is 20%, the proposed target beats both. The ambition ratio is approximately 25% / 17% ≈ 1.47x — close to, but slightly below, the 1.5x threshold, which might trigger a Refer rather than a clean Pass, prompting a discussion about whether the target can be stretched slightly.
Always pair this screen with a Second Party Opinion: the Principles require external scrutiny of the baseline definition, the recalculation policy, and the verification approach, none of which a calculator can confirm.