Türkiye’s benchmark BIST 100 index ended Friday at 10,372.04 points, slipping 0.10% from the previous session and closing the week 3.4% lower.
The decline came despite a temporary boost from the central bank’s decision to cut interest rates, as investors turned cautious ahead of a key political court ruling.
The day’s total transaction volume stood at ₺99.2 billion ($3.4 billion), with banking shares up 1% after recovering from early-week losses.
Of the BIST 100 constituent stocks, 43 gained, 54 fell, and three ended flat on the Friday session.
Tourism stocks recorded the biggest gains of the day, rising 1.6%, while financial leasing and factoring companies registered the steepest decline, falling 8.17%.
Technical analysts identified 10,300 and 10,200 points as key support levels for the BIST 100, while 10,500 and 10,600 points were cited as resistance thresholds.
The Turkish Lira Reference Rate (TLREF), a benchmark used in financial markets, eased to 40.14% on Friday after the Central Bank of the Republic of Türkiye (CBRT) cut its policy rate by 250 basis points to 40.5% the previous day.
In the government bond market, the yield on the two-year fixed-income security rose more than 9% over the week, standing at 337.24% on a simple basis and 40.71% on a compound basis in same-day settlement trades.
Meanwhile, currency markets showed limited movement. The U.S. dollar edged up 0.11% over the week to close at ₺41.3680, while the euro was little changed, ending at ₺48.5110.
Market sentiment remains overshadowed by political uncertainty. Investors are closely watching the upcoming court decision on September 15 regarding the annulment case of the main opposition Republican People’s Party (CHP) electoral congress held in 2023.
The case involves bribery allegations that could result in the removal of the party’s current administration if upheld.
Earlier this month, on September 2, a court dismissed CHP’s Istanbul board over related accusations. The development deepened concerns about political stability and prompted foreign investors to pull more than $500 million from Turkish equities during the week—marking the largest weekly outflow since March’s market turbulence.