Borsa Istanbul in the first nine months of 2025: which sectors paid off for investors?

Borsa Istanbul’s BIST 100 index returned 12.02% to investors from January to September 2025.

During this period, 17 of the 22 sectors in the index rose and 5 lost value. The BIST 100, which started the new year on an upward trend, ended January higher, but fell in February, April and May due to US tariff remarks and continuing global uncertainty. It climbed again in June, July and August, setting a new record of 11,605.30 points in August, before declining in September.

Sectors with the biggest gains

• Financial leasing and factoring: 430.44%
• Tourism: 52.97%
• Real estate investment trusts: 52.90%
• Construction: 47.21%
• Forestry, paper and printing: 42.21%

Sectors with losses

• Sports: −21.39%
• Insurance: −10.56%
• Stone and earth: −2.71%
• Food and beverage: −2.38%
• Trade: −1.59%