Turkish stocks experienced a significant downturn on Wednesday, September 16, 2026, with the Borsa Istanbul 100 Index falling as much as 5.7%. This extends a two-day decline to 6.9%, marking the largest such drop since March 2025. The sell-off was triggered by an asset manager's failure to fulfill redemption requests, leading to widespread concerns about liquidity stress within Turkey's fund industry. All but one stock in the benchmark index declined, with Destek Finans Faktoring AS experiencing a 10% drop. The index later pared some losses, trading 3% lower as of 11:55 a.m. in Istanbul.
The broader market impact included net redemptions of 550 billion Turkish lira (approximately $1.13 billion) from Turkish investment funds on the same day, according to financial data platform Fintables. This crisis was exacerbated by Pusula Portfoy's announcement that its investment and money market funds were unable to meet redemption requests, intensifying the liquidity fears.
This event highlights underlying vulnerabilities in the Turkish market. Previous instances, such as the circuit breaker triggered by Sekuro Plastik Ambalaj in August 2026, and Hedef Holding's liquidity issues, have underscored the mechanical boundaries of the exchange rather than fundamental valuation shifts. While Turkey's stock market has seen significant gains in the past year, driven by local investors seeking an inflation hedge and foreign investment, these incidents reveal the fragile nature of some market participants and the potential for rapid corrections when speculative momentum meets liquidity constraints.
