Sustainable fixed income solutions

中文标题

可持续固定收益解决方案

State Street09/04/2026updated 10/17/2026

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Citable research brief

Core conclusion · Tlines extraction

State Street Investment Management highlights its sustainable fixed income capabilities through four case studies, emphasizing flexible Custom Portfolio Solutions and custom third-party index strategies that integrate climate objectives, such as carbon reduction targets, green bond overweights, and exclusion screens, while maintaining low tracking error. The strategies achieved reported outcomes like tracking error of ~12 bps in an EM corporate climate strategy, illustrating the firm's ability to tailor solutions to diverse institutional investor needs.

Institution: State Street
Published: 09/04/2026
Research topic: Sustainable fixed income · Fixed income · Climate strategy
Time horizon: medium_term · long_term · past

Key arguments

Custom Portfolio Solutions offer flexibility to customize objectives, incorporate multiple data sources directly into the investment process, and achieve low tracking-error volatility compared to the reference benchmark.
The multi-source sustainability data framework enables integration of data from providers such as ISS ESG, MSCI, Sustainalytics, and others, supporting tailored sustainable investing approaches.
Case studies demonstrate successful implementation of climate bond strategies with carbon reduction targets (e.g., 30%, 40%, 50%) and forward-looking metrics like implied temperature rise ≤2°C, while keeping tracking error within tolerance (e.g., ~12 bps for EM strategy).

Key numbers

Initial investment Case Study 1: €650 million
Carbon reduction target Case Study 1: 30% by 31 Dec 2024
Year-on-year decarbonization pathway: 7.6%
Green bond overweight Case Study 1: >200% of benchmark weight
Carbon intensity reduction Case Study 2: 50% Scope 1 & 2
Implied temperature rise target Case Study 2: ≤2°C
Portfolio turnover Case Study 2: ~30% over 5 days
Tracking-error tolerance Case Study 2: 50 basis points

Main risks

Sustainability data coverage and quality may vary across providers and affect the ability to achieve objectives.
Future performance of the strategies is not guaranteed; estimates and projections involve assumptions and analysis by State Street.
Tracking error may increase if market conditions change or if constraints limit the ability to replicate the benchmark.
The examples are illustrative and may not reflect the actual experience of all clients.

Corresponding source evidence

the most common reasons why investors opt for the Custom Portfolio Solution is the flexibility to customize objectives and the ability to incorporate multiple data sources directly into the investment process while still achieving a low tracking-error volatility to the reference benchmark. · medium_term
Climate — 50% Scope 1 & 2 carbon intensity reduction versus the benchmark with annual 7.6% YoY reduction kicking in from 2030 · long_term
Implied temperature rise target of ≤2°C · long_term

Context: the conclusion is Tlines' automated extraction, not the institution's wording. Quoted evidence is publisher wording. Scope and date must travel with the conclusion.

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