The benchmark VN-Index on the Ho Chi Minh Stock Exchange decreased 0.40 per cent to close at 971.28 points.
Nearly 60.5 million shares were traded on the two local exchanges, worth VNĐ1.3 trillion (US$53 million).
The index increased 0.53 per cent to close Monday at 975.14 points.
The HNX-Index on the Ha Noi Stock Exchange inched up 0.02 per cent to end at 105.06 points.
Large-caps saw wide divergence among stock groups.
Brewery Sabeco (SAB), FLC Faros Construction Joint Stock Company (ROS), Masan Group (MSN) and Bảo Việt Holdings (BVH) declined and dragged down the market.
In particular, SAB decreased 1.5 per cent to VNĐ261,100 per share. ROS dropped by 2.3 per cent to VNĐ29,700 per share, and BVH fell 1.2 per cent to VNĐ75,400 per share.
Meanwhile, PetroVietnam Gas JSC (GAS), Techcombank (TCB), Vietjet Air (VJC) and Việt Nam National Petroleum Group (PLX) gained and narrowed the market’s losses.
Some oil and gas stocks such as PetroVietnam Drilling and Well Services Corporation (PVD), Drilling Mud Joint Stock Corporation (PVC) and PetroViet Nam Coating JSC (PVB) all fell.
On a sector basis, sectors that increased included oil and gas, information and technology and construction materials.
On the negative side, banking, real estate, insurance, food and beverages, securities, agriculture, logistics and construction were among the sectors that reported losses.
The afternoon trading session starts at 1pm.