BIST 100 index, which moved in a downward trend in the first half of the day, fell to 13,322.60 points as of 13:00, a decrease of 395.21 points and 2.88 percent compared to the previous close.
The total transaction volume was 99.3 billion lira. The banking index lost 4.69 percent and the holding index lost 5 percent.
In the sector indices, the only increase was chemistry, petroleum plastics with 0.36 percent, and the biggest decrease was securities investment trust with 6.71 percent.
A negative trend is observed in global markets as the risks of long-term conflict in the Middle East increase after the USA and Israel launched an attack against Iran and the retaliation from Iran.
BIST 100 index in Borsa Istanbul also follows a negative trend due to the effect of increasing geopolitical risks in parallel with global markets.
According to domestic data, the Turkish economy grew by 3.6 percent last year and 3.4 percent in the last quarter of 2025. Thus, the Turkish economy carried its growth trend to 22 quarters.
Economists participating in AA Finans’ expectation survey regarding Gross Domestic Product (GDP) data had predicted that the Turkish economy would grow by 3.6 percent on an annual basis in the 4th quarter of 2025.
Analysts stated that European Central Bank (ECB) President Christine Lagarde’s speech and US manufacturing industry Purchasing Managers Index (PMI) data will be followed for the rest of the day, and stated that technically, 13,200 and 13,100 points in the BIST 100 index are support and 13,400 and 13,500 points are resistance.
