EL7.AI
StocksMedium•30 October 2026•
2 min read

BIST 100 falls 1.87% on Oct. 30 as Turkey inflation data looms

Key Facts

1The BIST 100 fell 1.87% to 10956 points on Oct. 30, 2026.
2The number of unemployed people in Turkey rose by 198 thousand to 2.967 million in September 2026.
3Annual consumer price inflation stood at 29.73% in September 2026.
4The next consumer price index bulletin will be released on Nov. 3, 2026.

The BIST 100 fell 1.87% on Oct. 30 to 10956 points, according to the Trading Economics page. That reading conflicted with the 3.64% figure in the initial draft, which could not be confirmed from the cited news page. The draft figure therefore lacks open confirmation, while the available page attributes the decline to Friday's session compared with the previous session. The available material offers no explanation for the index's move and no evidence that heavy selling caused it. The session came ahead of the scheduled release of Turkey's next consumer price data on Nov. 3.

In labor market data, the number of unemployed people aged 15 and over rose by 198 thousand in September to 2.967 million, according to the Turkish Statistical Institute. Labor market figures also do not establish a causal link with the decline in stocks during the Oct. 30 session. The data provide economic context separate from the index's daily movement.

On prices, Turkey's annual consumer price index stood at 29.73% in September, according to the Turkish Statistical Institute's portal. The portal set Nov. 3, 2026, as the release date for the next bulletin on the index. The open official material does not show a forecast of 30% for the upcoming reading, so that figure cannot be presented as a market estimate. The next bulletin's release date puts inflation data on the watchlist after the stock session, without establishing that it drove the index's decline. September's figure remains the latest annual reading in the available facts.

Another backdrop to Turkish market movements was liquidity disruption in investment funds during September. On Sept. 17, Reuters reported that the central bank raised repo funding to 300 billion lira and increased banks' borrowing limits in the interbank market tenfold, amid liquidity disruption in the funds. The following day, Finance Minister Mehmet Simsek said 90% of the fund market was operating smoothly, after a decision to liquidate 131 investment funds. Reuters quoted him as saying, "90% of the fund market continued to operate smoothly." These measures and statements provide prior market context and do not directly explain the BIST 100's decline on Oct. 30.