In the early hours of October 19, 2026, the office of the Sermaye Piyasası Kurulu (SPK) in Istanbul was quiet except for the echo of a resignation letter. Mahmut Sütçü, who had taken the helm only five months earlier, announced his departure due to health concerns and filed a retirement application. The decision came as a shock to the market, where the SPK had been a key regulator overseeing securities and investment funds.

Sütçü’s resignation was not a political maneuver but a personal one. Health issues, as stated in the official announcement, prompted him to step aside. His brief tenure had seen the SPK grapple with mounting pressures, and his withdrawal underscores the toll that high‑stakes regulatory roles can exact on individuals. The move also highlighted the importance of leadership continuity in times of financial uncertainty.
The SPK’s departure coincided with a deepening financial crisis in Turkey’s capital market. Stock prices had been volatile, and investor confidence was fragile. The regulator’s role in stabilizing the market is critical, and the sudden vacancy raised concerns about the speed and effectiveness of any interim oversight.
The process involves selling off assets, settling liabilities, and ensuring that remaining stakeholders receive fair treatment.
Amid the turmoil, the SPK has been focused on the liquidation of 131 investment funds. This large-scale wind‑down is part of a broader effort to address mismanagement and protect investors. The process involves selling off assets, settling liabilities, and ensuring that remaining stakeholders receive fair treatment. The scale of the liquidation underscores the severity of the market’s challenges.
On the same day, Hazine ve Maliye Bakan Yardımcısı Osman Çelik, the deputy minister of Treasury and Finance, also submitted his retirement application. Çelik’s resignation signals a ripple effect within the government’s financial apparatus, as both the regulator and a key minister step down simultaneously. The dual departures point to a period of transition for Turkey’s fiscal oversight.
The SPK has announced that a new chairman will be appointed shortly. While the identity of the successor remains undisclosed, the appointment will be crucial in steering the regulator through the liquidation process and restoring confidence in the capital market. As Turkey navigates this turbulent period, the eyes of investors and policymakers will be on the new leadership’s ability to stabilize the financial landscape.
