Singapore shares opened lower for the second straight session, dragged by geopolitical uncertainty and a selloff in tech stocks globally.

The Straits Times Index opened lower by 0.33%, or by 18.11 points, at 5,521.270.

According to reports, there is growing concern among investors that the surge in artificial-intelligence investments may not justify the high valuations.

Elsewhere, the brewing tensions in the Middle East, with fresh attacks by the US, have also dampened investor sentiment.

Back home, investors are also eyeing local economic data, as Singapore's merchandise trade surplus ballooned to SG$13.8 billion in June from SG$5.57 billion in the prior month, according to data from Statistics Singapore released on Friday.

The latest figure marked the largest surplus since April 2025, beating the Trading Economics forecast of SG$6.0 billion in surplus.