Alten stock falls 2.48 percent ahead of the open

At the close on September 24, 2026, Alten stock stood at EUR 70.80 after falling 2.48 percent. The shares traded between EUR 70.40 and EUR 72.20 as Alten raised its 2026 outlook.

Alten stock closed at EUR 70.80 on Euronext Paris on September 24, 2026, down 2.48 percent. The shares traded below the SBF 120, which closed at 6,123.78 points on the same session.

September 24, 2026 in numbers

Alten SA (ISIN FR0000071946) traded between EUR 70.40 and EUR 72.20 on September 24, 2026. The close was EUR 13.20 below the 52-week high of EUR 84.00 and EUR 19.90 above the 52-week low of EUR 50.90.

As Investir reported on September 24, 2026, Alten raised its 2026 organic-growth target to 1.7 percent to 1.9 percent and projected an operating margin of about 9.2 percent.

Today after the outlook update

The revised 2026 targets are the latest company-specific catalyst heading into the September 25, 2026 session. European equity markets also finished lower on September 24, 2026, with the Euro Stoxx 50 down 0.16 percent, providing a broader market comparison for Alten shares.