CNMV decides to designate the IBEX 35 as a significant benchmark
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The CNMV has designated the IBEX 35 as a significant benchmark under Article 24(3) of the EU Benchmarks Regulation (BMR), following its reform and with a favourable opinion from ESMA. The index has no suitable substitutes and its discontinuation could harm market integrity and financial stability.
Key points
- Sociedad de Bolsas will remain subject to the requirements for administrators of significant benchmarks.
- AFI, SERFIEX, BBVA and MIBGAS leave the EU register of administrators from 1 October 2026; their indices may still be used.
Who is affected
Sociedad de Bolsas, issuers of IBEX 35-linked products and supervised entities using benchmarks.
Deadlines
Removal from the register of administrators on 1 October 2026.
Plain-language version
The CNMV, Spain's market watchdog, has classed the IBEX 35, the index of the 35 biggest companies on the Spanish stock market, as a significant benchmark. Many financial products and funds rely on it and it has no easy substitute. So the company that calculates it will stay under stricter rules.
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Summary produced with artificial intelligence from the official publication. It may contain errors: always check the original document.
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