BIST 100 loses 294 points at midday as AI fears spread
Published on 10/23/2026 at 13:26 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSRates and market breadth
- BIST 100 stood at 10,927 points at 1:00 p.m. TRT, down 294 points or 2.6 percent.
- The CBRT cut its policy rate by 100 basis points to 36 percent.
- Investment trusts led sector declines at 6.99 percent, while 97 index stocks fell.
- Results from nine listed companies are scheduled for October 26, 2026.
BIST 100 lost 294 points, or 2.6 percent, to 10,927 points at 1:00 p.m. TRT on October 23, 2026. The decline followed the Central Bank of the Republic of Turkiye's 100-basis-point rate cut to 36 percent and a broad retreat across sectors.
Since the 11,537-point midday level, BIST 100 has lost 611 points, or 5.3 percent. Investment trusts fell 6.99 percent, while 97 of the index's 100 stocks declined, Capital reported.
Why is BIST 100 down at midday?
The CBRT lowered its one-week repo rate from 37 percent to 36 percent on Thursday. The overnight lending rate fell from 40 percent to 39 percent, while the borrowing rate declined from 35.5 percent to 34.5 percent, Anadolu Agency reported.
Market selling also followed concerns about artificial intelligence investment financing and higher oil prices in global markets, Hibya said.
BIST 100 breadth turns sharply negative
The index opened at 11,234 points after Thursday's 11,220-point close. It reached an intraday high of 11,245 points and a low of 10,892 points by 1:00 p.m. TRT. Technology fell 3.86 percent, services dropped 2.12 percent, industry declined 3.17 percent and financials lost 2.51 percent, Capital reported.
What comes next for BIST 100
- October 26, 2026: Results are scheduled from AGESA, ANHYT, ARCLK, BRISA, CIMSA, LILAK, TABGD, TKNSA and TTRAK, Ekonomim reported.
BIST 100 price data for October 23, 2026
BIST 100 stood at 10,927 points at 1:00 p.m. TRT on October 23, 2026, according to Capital. It was down 294 points, or 2.6 percent, from the 11,220-point previous close. The index opened at 11,234 points and traded between 11,245 points and 10,892 points.
BIST 100 by the numbers on October 23, 2026
- Index: BIST 100
- Home exchange: Borsa Istanbul, Turkey
- Level at 1:00 p.m. TRT on October 23, 2026: 10,927 points
- Change versus previous close of October 22, 2026: down 294 points (down 2.6 percent)
- Previous close: 11,220 points
- Open: 11,234 points
- Day high / day low: 11,245 points / 10,892 points
- Next scheduled event: October 26, 2026: listed-company earnings
