PSA Peugeot Citroen is to be dropped from the CAC-40 index in France.
Peugeot was a founding member of the index, created 25 years ago, but has been struggling with falling sales and a falling share price.
The car maker will be replaced by Solvay, a Belgian chemicals group. The change is due to take place on 24 September.
The BBC reports PSA Peugeot Citroen had a fall of 13% in sales in the first half of the year. Its share price is down 61% this year, while the Cac 40 index has risen by 11% over the same period.
In July, Peugeot announced that it was cutting 8000 jobs on top of the 3500 announced last year and closing a plant. The company said it expects to break even by the end of 2014.