Vietnamese shares traded in negative territory on Tuesday morning caution rising among investors.
The benchmark VN-Index on the Hồ Chí Minh Stock Exchange slid 0.02 per cent to end at 982.85 points.
The benchmark lost 0.46 per cent on Monday.
More than 79 million shares were traded on the southern bourse, worth VNĐ1.48 trillion (US$63.6 million).
Modest trading liquidity proved investors were quiet to trade ahead of key international events this week, including the US-China talks.
While large-cap stocks continued to rise, mid-cap and small-cap stocks were on decline.
The blue-chip VN30-Index rose 0.18 per cent. The VNMID-Index and VNSML-Index were down 0.22 per cent and 0.21 per cent, respectively.
Even large-cap stocks were mixed.
Declining large-caps included realty firms Vingroup (VIC), Vinhomes (VHM), Vincom Retail (VRE) and Novaland (NVL), and brewer Sabeco (SAB).
On the positive side, Vietcombank (VCB), food and beverage firm Masan (MSN), insurer Bao Viet Holdings (BVH) and steel producer Hoa Phat (HPG) increased.
The minor HNX-Index on the Ha Noi Stock Exchange fell 1.15 per cent to close at 102.53 points.
The northern market index dropped 1.36 per cent on Monday.
Nearly 12.7 million shares were traded on Hà Nội market, worth VNĐ200 billion.
The afternoon trading session starts at 1pm.