Istanbul Exchange to Remove 25% of Main Index Constituents Amid Liquidity Crisis

Key Facts

1The Istanbul stock exchange plans to remove over a quarter of the companies from its main index.

2The move is part of regulatory efforts to tackle an ongoing liquidity crisis in the Turkish market.

Amid escalating pressures on emerging markets, the Istanbul stock exchange plans to remove over a quarter of the companies currently listed in its main index. This regulatory move is designed to tackle an ongoing liquidity crisis that has hampered the Turkish market's stability. According to reports, the decision aims to improve overall market quality and mitigate the risks of significant capital outflows following previous warnings regarding the market's status.

This large-scale index rebalancing highlights deep structural liquidity issues within the Turkish financial ecosystem. Regulatory efforts are now focused on streamlining the index to ensure better market depth, though the move is expected to trigger forced selling by index-tracking funds. Per market dynamics, such a significant reduction in constituents often leads to short-term volatility as institutional investors realign their portfolios to match the new index composition.

As of September 22, 2026, specific price levels for the Istanbul indices are unavailable in the current data set, necessitating a focus on qualitative market direction. Investors should closely monitor the official list of delisted entities and upcoming regulatory announcements from Borsa Istanbul. Furthermore, global sentiment remains influenced by broader central bank actions, including the recent Fed interest rate decision, which continues to impact capital flows into emerging market equities.