BIST 100 plunges nearly 6% with 590 of 600 Borsa İstanbul stocks in the red

Borsa İstanbul's BIST 100 index fell close to 6% on 16 September 2026, with 590 of 600 listed companies trading lower and 99 index constituents in negative territory. The sharp selloff came on the day of the Federal Reserve's rate decision, with markets described as mixed.

Detected & updated continuously · Source: Nebula