Wiener Börse ATX Prime Holds Steady as Addiko Takeover Battle Intensifies

On Monday 20 July 2026 the Wiener Börse saw little movement in its main ATX index, which closed near 6,370 points, indicating a calm trading session after the holiday‑driven quiet period. While overall market activity was muted, the podcast covering the day highlighted that the takeover contest for Addiko Bank remains a focal point, with the bank’s ownership struggle still “far from settled.”

In parallel, the ATX Prime sub‑index recorded a modest 0.05 % rise to 3,138.38 points at midday, after fluctuating between a low of 3,118.56 and a high of 3,146.60 points. Year‑to‑date the index has gained about 18 %, reaching a yearly high of 3,243.92 points. Top performers included Marinomed Biotech (+19.5 %), ZUMTOBEL (+5.1 %) and Frequentis (+4.0 %). Declining stocks featured Warimpex, AT & S and Lenzing.