Turnover was as brisk as Bt72 billion.
Trinity Securities foresees a further increase in the Stock Exchange of Thailand index.
Trinity has also revised upward its projection, targeting the SET index to hit 1,800 points from an earlier forecast of 1,650.
Japan yesterday reported the 0.2 per cent growth in the fourth quarter, while China's export growth in February was higher than expected. Unemployment benefit claims in the US also dropped.