The Athens stock market lost its footing on Tuesday, with the FTSE/Athex General Index falling below the psychologically significant 2,500 level.
The decline was primarily driven by sharp selling pressure in the banking sector, which acted as a major drag on the broader benchmark amid renewed geopolitical anxiety.
The market move comes as the prospect of a peace agreement between the United States and Iran appears increasingly precarious.
Despite diplomatic efforts, both sides continue to exchange military strikes, keeping risk sentiment fragile across European equities.
The uncertainty surrounding the Strait of Hormuz and potential supply chain disruptions has spilled over into regional markets, with Greek investors particularly sensitive to energy price volatility and geopolitical instability in the Eastern Mediterranean.
This latest slide extends the pressure on European equities that has persisted since early July.