ATOSS stock heads into the open after a 0.55 percent gain

At the close on September 23, 2026, ATOSS stock reached EUR 90.90 on Xetra after adding 0.55 percent, with a EUR 89.40 to EUR 91.50 range. The DAX fell 0.66 percent that session.

ATOSS stock closed at EUR 90.90 on Xetra on September 23, 2026, gaining 0.55 percent from the previous session. The shares outperformed the DAX, which ended at 25,410.63 points, down 0.66 percent on the same date.

September 23, 2026 in numbers

ATOSS Software AG (ISIN DE0005104400) traded between EUR 89.40 and EUR 91.50 on Xetra on September 23, 2026. The EUR 2.10 range placed the close EUR 0.60 below the session high, while the quoted data showed a previous close of EUR 89.20 and a daily move of 1.70 percent in one market overview.

The session close of EUR 90.90 and the 0.55 percent gain are also reported by Ad-hoc-News for the Xetra session dated September 23, 2026.

Today and the next sessions

The scheduled market calendar for September 24, 2026 includes German and European economic releases, including Germany's Ifo business climate data, which can matter for German technology shares through the broader market backdrop. The DAX closed down 0.66 percent on September 23, 2026, providing the relevant reference for ATOSS before the next Xetra session.