FRANKFURT (DEUTSCHE-BOERSE AG) - Following a robust performance in May, stock markets are entering the new month with optimism. The conflict in Iran remains a focal point. However, markets are also buoyed by a successful earnings season, lower interest rates, and the ongoing AI euphoria. June 1, 2026. FRANKFURT (Deutsche Börse). Equity markets concluded May with significant gains. The DAX (DE0008469008) rose by 0.9 percent last week, while the Stoxx Europe 600 (EU0009658202) posted a 0.1 percent gain.