The Thai composite stocks index (SET) lost 10.00 points, or 1.45 per cent at noon on Monday to close the morning trading session at 681.41 amid Bt6.47 billion turnover.
The blue chip SET-50 index stood at 477.34 points, down 8.09 points or 1.67 per cent with Bt4.96 billion turnover.
The Market for Alternative Investment (MAI) index was at 209.22, down 0.44 point, or 0.21 per cent, with Bt104.31 million turnover.
Top five most active (value) stocks: BANPU, BBL, PTTEP, PTT, PTTCH.