Trading Session Overview

The September 17, 2026 trading session closed with green spreading across all three exchanges. VNINDEX rose 12.7 points, or 0.7%, to 1,822.8 points; total market liquidity reached 720.9 million shares. The movement suggests the short-term trend still leans upward, but the gains have narrowed compared with earlier breakout phases.

Capital flow continued to concentrate in large-cap stocks and those with high liquidity. On HOSE, the top stocks by volume were SHB with 47.4 million shares, SSI with 41.0 million, VIX with 39.2 million, and VPB with 31.8 million, reflecting a clear rotation within the market's leading group.

VN-Index chart for September 17, 2026

Notable Stocks

Divergence remained a key feature of the session. On the upside, many stocks hit or came close to the ceiling price, including HID (+7.0%), GEL (+7.0%), GIL (+7.0%), CCI (+6.8%), and PIT (+6.7%).

On the downside, stocks under correction pressure included STG (-7.0%), PTC (-6.8%), TDP (-6.8%), TNC (-6.5%), and TNH (-6.2%). This indicates that capital is still being highly selective rather than spreading evenly across the market.

TickerChangeVolume
HID+7.0%1.7 million
GEL+7.0%3.0 million
GIL+7.0%0.5 million

Sector Analysis

The banking sector continued to support the index, with stocks such as VPB (+2.2%), CTG (+1.8%), HDB (+1.8%), SHB (+0.9%), and TCB (+0.6%) leading the gains. Capital inflows into the financial sector were also quite positive, with SSI (+2.9%), VIX (+1.6%), VCI (+3.9%), and VND (+2.1%) all maintaining upward momentum.

In real estate, green also appeared across several names, including VIC, VHM, NVL, DXG, and KDH. However, the degree of divergence within each group remained wide, suggesting the market is moving selectively rather than with broad-based consensus.

Market heatmap for September 17, 2026

HNX and UPCOM

On HNX, the HNXINDEX rose 0.7 points, or 0.2%, to 273.9 points, with liquidity of 51.6 million shares. Notable gainers included SHS (+2.1%), MBS (+2.4%), and BVS (+4.3%), while some stocks with sharp moves such as HMH (-9.9%) and MAS (-9.9%) continued to reflect high divergence risk.

The UPCOMINDEX rose 0.2 points, or 0.1%, to 126.2 points. Of note, SLD surged 39.2%, AGP rose 14.8%, and XMD rose 14.8%, while FTI fell 32.4% and HOT dropped 20.0%.

Notable Technical Signals

In the data, the stocks with the highest composite scores were TVS at 81.7 points, MDG at 71.7 points, and CLC at 71.5 points, followed by BTT at 71.5 points and PVP at 70.9 points. These signals suggest that some stocks are still maintaining technical conditions more positive than the overall market.

Outlook and Risks

The short-term trend of the market remains positive as VNINDEX holds above the 1,820-point level, but the upside momentum is narrowing and market divergence remains high. The nearby support zone can be watched around 1,800 points, while the 1,830-point mark is a short-term resistance level to monitor.

In the coming sessions, the performance of large-cap liquidity groups and the extent to which gains spread across industry sectors will be the deciding factors. If capital flows continue to stay in leading stocks, the index could retest higher levels; conversely, weakness in blue-chip groups could push the market back into a narrow trading range.

The data is for analytical and informational purposes only and does not constitute investment advice.