ATHEX is experiencing a slight decline today, with sellers maintaining control over the banking sector during a session marked by expected volatility attributed to triple witching. 

The General Index is currently positioned at 1,697.5, reflecting a decrease of 0.3%. Trading activity has already reached a significant turnover of 137 million euros, largely driven by a substantial package worth 118 million euros related to a new placement in Alpha Bank, while trading volume stands at 58 million shares.

The banking index has fallen by 1.2%, settling at 1,648 points. The high-capitalization FTSE index is also down by 0.48% at 4,184 points, while the mid-cap FTSEM exhibits a slight increase of 0.13%, reaching 2,577.94 points.

Following Moody's recent upgrade, investors appear to be reorganizing their portfolios this week, engaging in partial profit-taking within the banking sector and shifting some focus toward higher-valued blue-chip stocks in response to current business developments.