The BIST 100 index ended the day at 11,721.72, down 348.4 points from the previous close. Total trading volume on Borsa Istanbul reached 116.2 billion liras.

The banking index fell 1.87%, while the holding companies index declined 2.46%. All sector indices fell, with the largest drop recorded in financial leasing and factoring at 5.72%.
The index ended the week down 4.44% from the previous week's close. During the week, the BIST 100 reached a low of 11,653.38 points and a high of 12,291.17 points.
Global markets remain in focus
Macroeconomic data released in the United States, developments in bond markets and the performance of technology stocks continue to influence the direction of global markets.
Analysts expect the interest rate decision of the Central Bank of the Republic of Türkiye to be followed domestically next week, while purchasing managers' index data from around the world and inflation data from the United Kingdom and Japan will be monitored internationally. China's growth data will also be watched.
Technically, 11,600 and 11,500 points are seen as support levels for the BIST 100 index, while 11,800 and 11,900 points are regarded as resistance levels.
Regulatory preparations for capital markets
Treasury and Finance Minister Mehmet Şimşek said they plan to complete legal regulations to strengthen the fight against capital market crimes, including coordinated trading by funds, by the beginning of 2027.
MSCI announced in a press release on Türkiye that some index changes related to the equity market had been frozen until a second announcement. Pointing to steps taken by Turkish authorities in the capital markets, the organization said additional time was needed to assess whether the measures would deliver the structural improvements expected by investors.

S&P assessment expected
International credit rating agency Standard & Poor's is expected to announce its assessment of Türkiye. The expectation is that Türkiye's credit rating will be maintained at "BB-" and its rating outlook at "stable."
Weekly performance of investment instruments
At Istanbul's Grand Bazaar, the weekly selling price of a gram of 24-carat gold bullion rose 0.05% to 6,648 liras, while the selling price of a Republic gold coin increased 0.04% to 43,327 liras. The selling price of a quarter gold coin also rose to 10,887 liras from 10,883 liras at the end of the previous week.
The U.S. dollar ended the week at 49.5270 liras, up 0.37%, while the euro rose 0.93% to 55.7610 liras. Investment funds lost 1.79% and pension funds declined 0.13%, while money market funds were the best-performing fund category of the week, gaining 0.83%.
