Selling pressure deepens on Borsa Istanbul
The BIST 100 index on Borsa Istanbul closed Monday, October 19, 2026, down 2.49% at 11,430.14 points. Following losses in the previous trading session, the index also started the new week on a negative note.
As regulatory decisions in capital markets and company-specific developments remained in investors' focus, selling pressure continued to weigh on the BIST 100 index.
During trading on Tuesday, October 20, investors will monitor the potential market impact of leadership changes at the Capital Markets Board of Türkiye (CMB) and regulatory decisions affecting companies.
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