The Polish Financial Supervision Commission (KNF) has designated WIG and WIG20 as significant benchmarks, keeping their provision subject to the European Union’s Benchmark Regulation (BMR) and KNF supervision. The decision, taken on November 6, 2026, follows amendments to the BMR’s scope that took effect on January 1, 2026.
The designation reflects the indices’ systemic importance and the absence of suitable market substitutes with comparable methodologies and constituent selection criteria. WIG20 serves as a principal reference for derivatives, including futures and options. Its total use stood at EUR 6.58 billion at the end of 2025. WIG provides a broad reference for Poland’s capital market and is used by institutions including the National Bank of Poland to evaluate fund performance.
The European Securities and Markets Authority (ESMA) supported the designation in advice provided to KNF. The indices will be included in ESMA’s public register of benchmarks. Their administrator, GPW Benchmark S.A., already holds KNF authorization under the BMR and does not need to apply for a new authorization.