STB Hits Ceiling at 68,500 VND as Vietnamese Bank Stocks Rally on October 23

Overview

Sacombank (STB) closed limit-up at 68,500 VND on October 23, up 6.86% with no sellers on the board, its fourth consecutive session of gains. The move came as 23 of 28 listed Vietnamese bank stocks advanced, with Eximbank (EIB) and Nam A Bank (NVB) also posting strong gains. STB is now the highest-priced bank stock in the market, ahead of Vietcombank (VCB) at 56,800 VND.

Key Facts

• STB closed at 68,500 VND on October 23, up 6.86% at the daily ceiling, with the sell side cleared.
• More than 8.2 million STB shares traded, the stock’s highest weekly liquidity, marking a fourth straight rising session.
• EIB rose 5.31% and at one point hit its ceiling at 18,100 VND, with turnover exceeding 20 million shares.
• NVB gained 5.84%, OCB 4.35%, ACB 3.9%, SSB 3.74% and LPB 3.59%.
• Foreign investors bought a net VND 152B of TCB, VND 62B of CTG and VND 55B of HDB.
• Foreign investors sold a net VND 469B of ACB, VND 84B of STB and VND 54B of MBB.
• STB’s market price exceeds VCB’s 56,800 VND close, making it the most expensive bank ticker by share price.

What Happened

Trading on October 23 saw Vietnamese banking stocks advance almost across the board, with 23 of 28 listed lenders closing higher, according to market data reported by Việt Nam hàng ngày. Sacombank’s STB was the standout, closing at its 6.86% ceiling of 68,500 VND with the ask side empty, a condition traders describe as trắng bên bán. Volume exceeded 8.2 million shares, the highest of the week, and the session extended a run of four consecutive gains.

The article notes the STB move coincided with news that Nguyễn Đức Thụy, Deputy Chairman of Sacombank’s board of directors, has been nominated to stand for the presidency of the Vietnam Football Federation (VFF) for its tenth term. The report does not establish a causal link between that nomination and the share price. Elsewhere, Eximbank’s EIB rose 5.31% after briefly touching its 18,100 VND ceiling on turnover above 20 million shares, and NVB added 5.84%. Foreign flows were mixed: net buying in TCB, CTG and HDB contrasted with net selling in ACB, STB and MBB.

Market Context

STB trades on HOSE and is the highest-priced bank stock in the market after this run, above VCB. The rally was sector-wide rather than stock-specific, spanning large state-owned lenders and smaller joint-stock banks alike, which points to sentiment toward the banking sector rather than a single catalyst. The divergence in foreign flows, with net buying in TCB, CTG and HDB but net selling in ACB, STB and MBB, suggests foreign investors were rotating within the sector rather than adding uniformly. The article does not provide index-level data for the October 23 session.

Strategic Significance

For long-term holders, the key question is whether STB’s premium valuation to VCB is supported by fundamentals or by momentum. Sacombank has been associated with a multi-year restructuring of legacy assets, and a price above the country’s largest bank by assets implies the market is pricing in substantial earnings recovery or a specific corporate catalyst. A fourth straight session at the ceiling on elevated volume raises the risk of short-term overshoot, particularly with foreign investors net sellers of the stock. The breadth of the rally across weaker banks such as NVB and EIB suggests liquidity-driven beta rather than differentiated credit fundamentals.

What to Watch

• STB’s trading volume and whether the ceiling holds or reverses in the next session, given the stock is now the market’s highest-priced bank.
• Foreign net flow data for STB and ACB, where selling has been concentrated.
• Any Sacombank disclosure tied to the VFF nomination of Deputy Chairman Nguyễn Đức Thụy, and whether the company comments on the share price move.
• Third-quarter earnings releases across the sector, which will test whether the rally is earnings-supported.
• Sector-wide foreign flow trends in TCB, CTG and HDB, the current net-buy targets.