# Vienna Stock Exchange market performance

> Live situation record from CLSTR: https://clstr.news/situations/vienna-stock-exchange-market-performance
> Updated: 2026-09-06T19:51:24.000Z. Sources: 3. Developments: 2.

The Vienna Stock Exchange has experienced fluctuations and downward movement in the ATX index. In mid-August, the index showed mixed performance, trading down approximately 0.23 percent amid geopolitical tensions between the United States and Iran.

By early September, the ATX index saw further decline, dropping 0.61 percent to 6,863.54 points during midday trading. While the index maintained a significant year-to-date gain, individual stock performance varied, with notable declines in AT&S and high trading volumes for Kontron and AT&S on the German Xetra platform.

## Timeline

### 2026-09-06: Austrian ATX index declines amid high Kontron and AT&S trading volumes

The ATX index saw midday declines while Kontron and AT&S led trading volumes for Austrian stocks on Germany's Xetra platform during June.

3 sources. https://clstr.news/cluster/austrian-atx-index-declines-amid-high-kontron-and-ats-trading-volumes

### 2026-08-17: Vienna Stock Exchange shows mixed performance amid geopolitical tensions

The Vienna Stock Exchange saw mixed results as the ATX index fluctuated. Key news includes Mayr-Melnhof's acquisition of a German recycling plant and Zumtobel appointing Heiner Lang as new CEO.

4 sources. https://clstr.news/cluster/vienna-stock-exchange-shows-mixed-performance-amid-geopolitical-tensions

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Cite as: Vienna Stock Exchange market performance. CLSTR, https://clstr.news/situations/vienna-stock-exchange-market-performance