The BIST 100 index ended the day at 11,721.72 points, down 348.4 points from the previous close. Total trading volume on the stock exchange was 116.2 billion liras.
The banking index lost 1.87 percent and the holding index 2.46 percent. All sector indices fell, with the biggest decline, 5.72 percent, in the financial leasing and factoring sector.
The index ended the week down 4.44 percent from the previous week's close. During the week, the BIST 100 saw a low of 11,653.38 points and a high of 12,291.17 points.
Global markets in focus
Macroeconomic data released in the U.S., developments in the bond market and the course of technology stocks continue to shape the direction of global markets.
Analysts said that next week the interest rate decision of the Central Bank of the Republic of Türkiye will be watched at home, while abroad the focus will be on Purchasing Managers' Index data around the world and inflation data in the U.K. and Japan. China's growth data will also be monitored.
Technically, 11,600 and 11,500 points are seen as support levels for the BIST 100 index, and 11,800 and 11,900 points as resistance levels.
Preparations for capital markets regulation
Treasury and Finance Minister Mehmet Simsek said they plan to complete, by the start of 2027, legal regulations that will strengthen the fight against capital market crimes, including coordinated trading by funds.
In a press release on Türkiye, MSCI announced that some index changes in the equity market have been frozen until further notice. Pointing to the steps taken by Turkish authorities in capital markets, the firm said additional time is needed to assess whether the measures deliver the structural improvements investors expect.
S&P assessment awaited
International credit rating agency Standard & Poor's is expected to announce its assessment of Türkiye. Expectations are that Türkiye's credit rating will be kept at "BB-" and its outlook at "stable."
Weekly outlook for investment instruments
At the Grand Bazaar, the selling price of a gram of 24-carat gold bullion rose 0.05 percent on a weekly basis to 6,648 liras, while the selling price of the Republic gold coin rose 0.04 percent to 43,327 liras. The selling price of the quarter gold coin also rose from 10,883 liras at the end of last week to 10,887 liras.
The U.S. dollar ended the week up 0.37 percent at 49.5270 liras, and the euro up 0.93 percent at 55.7610 liras. Mutual funds lost 1.79 percent and pension funds 0.13 percent, while the best-performing fund category of the week was Money Market Funds, up 0.83 percent.
