

Triodos Investment Management, the impact investing arm of Triodos Bank, and STOXX Ltd., a global index provider and part of the ISS STOXX group of companies, have jointly launched the iSTOXX Triodos Developed Markets Impact Index.
The new offering is designed as a benchmark for institutional investors focused on aligning portfolios with measurable environmental and social impact goals.
The index was developed in response to a growing institutional demand for tools that go beyond exclusionary ESG screens and actively support investment strategies targeting positive impact. Despite growing interest in impact investing, a lack of suitable benchmarks has made it difficult for investors to construct portfolios that are genuinely aligned with sustainability outcomes.
Triodos IM is a dedicated impact investor with a mission to direct capital toward companies and projects that contribute positively to society and the environment. The firm has been expanding its offerings to better serve institutional investors seeking to integrate sustainability into their core investment strategies.
The iSTOXX Triodos Developed Markets Impact Index addresses this need by offering a benchmark that allows investors to allocate capital towards specific UN Sustainable Development Goals (SDGs) while also minimising exposure to companies that cause harm, such as those involved in fossil fuels, tobacco, or child labour. Unlike traditional sustainable indices that focus on exclusion criteria, this product enables users to actively steer investment portfolios towards measurable impact.
This proprietary index will be available exclusively to Triodos IM’s institutional clients, offering them a unique opportunity to implement impact-aligned investment strategies supported by rigorous benchmarking. The index also supports the ability to tailor portfolios around key themes or SDGs as needed.
The partnership between Triodos IM and STOXX merges impact investing expertise with deep index-building capabilities, creating what both companies believe to be a first-of-its-kind solution in the sustainable investing space.
Triodos IM director of impact equities and bonds William de Vries said, “The iSTOXX Triodos Developed Markets Impact Index aims to be the leading broad impact benchmark, not only enabling institutional investors to effectively steer on impact but also to allocate their investments to specific UN Sustainable Development Goals (SDGs). It also allows us to emphasise specific investment themes when constructing portfolios for our institutional clients.”
STOXX general manager Axel Lomholt said, “As a leading provider of innovative custom index solutions, we are delighted to partner with Triodos Investment Management in creating this first-of-kind custom-built impact benchmark. The iSTOXX Triodos Developed Markets Impact Index provides Triodos IM institutional investor clients with new opportunities to align their portfolios with their specific impact and SDG themes.”
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