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ECONOMY19.06.2026

Borsa İstanbul Announces Third Quarter Index Revisions

Borsa İstanbul, Turkey’s main stock exchange, has announced its third-quarter revisions to the country’s stock indices. The adjustments will see four companies removed from the BIST 50 index and three companies from the BIST 100 index. Notably, the prestigious BIST 30 index will retain its current composition without any changes.

The BIST 100 index tracks the 100 largest and most liquid companies listed on Borsa İstanbul, serving as a key indicator of the Turkish stock market’s overall health. Similarly, the BIST 50 covers the 50 largest, and the BIST 30 represents the 30 most traded and largest firms. These indices are crucial reference points for both domestic and international investors monitoring Turkey’s economic performance.

Changes to these benchmark indices carry significant implications. Companies removed may experience reduced investor interest and potential selling pressure, particularly from passively managed funds that adjust their portfolios to match index composition. These periodic revisions are part of Borsa İstanbul’s routine process to ensure its indices accurately reflect the most relevant and liquid companies, thereby maintaining their integrity as measures of the Turkish economy.

Source: Bloomberght

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