US Stock Real-Time Quotes: Market Seeking Direction Amid Divergence in September

In September 2026, the US stock market continued the volatile pattern of August, with the Dow Jones Industrial Average, Nasdaq Composite, and S&P 500 showing different trends under the multiple impacts of tech stock divergence, economic data, and Federal Reserve policy expectations. As of September 18, the Dow had risen 1.2% cumulatively, the Nasdaq fell 0.8%, and the S&P 500 rose slightly by 0.3%, reflecting market caution toward tech stocks and relative preference for traditional industries.

From an industry perspective, tech stocks showed clear internal divergence. Growth-oriented tech stocks represented by AI and cloud computing rebounded slightly due to better-than-expected earnings from some companies, while hardware sectors like storage chips and semiconductor equipment continued to face pressure from inventory buildup and weak demand. For example, NVIDIA (NVDA) saw its stock price rise 3.5% in the first two weeks of September due to strong demand for AI chips; Micron Technology (MU), however, fell 4.2% because of oversupply in the memory market. This divergence reflects different market judgments on the commercialization process of AI technology and the inflection point of the hardware cycle.

Tech Stock Divergence: The Game Between AI Dividends and Hardware Cycles

AI Sector: Structural Opportunities Under the Second Wave of Dividends

As the core theme of the US stock market in 2026, AI's investment logic is shifting from "concept hype" to "profit verification". Recently, multiple AI-related companies released earnings reports, showing that AI-driven cloud services and software subscription revenues grew beyond expectations. For instance, Microsoft (MSFT)’s Azure AI service revenue increased by 28% year-on-year, and Amazon (AMZN)’s AWS AI solutions revenue grew by 22%, reinforcing market confidence in AI's long-term value. Meanwhile, accelerated AI model iteration and technological breakthroughs from companies like OpenAI and Anthropic further drive industrial chain investment, benefiting companies across chips, computing power, and application layers.

For Vietnamese investors, the long-term allocation value of the AI sector remains significant. Historical data on Vietnam's capital flows to the US stock market shows that tech stocks have always been a key allocation for Vietnamese investors. As the core driver of tech stocks, AI's leading companies in the industrial chain (such as NVIDIA, Microsoft, Google) possess global competitiveness and profit stability, making them suitable as core assets for long-term holding.

Hardware Sector: Dual Pressure from Inventory Cycles and Weak Demand

In contrast to the prosperity of the AI software sector, the hardware sector (especially chips and semiconductor equipment) faces challenges of inventory adjustment and demand slowdown. In the second quarter of 2026, global semiconductor sales grew 5.2% year-on-year, but the growth rate was 2.1 percentage points lower than in the first quarter, indicating the industry has entered an inventory digestion phase. Storage chip manufacturers like Samsung and SK Hynix still have high inventory levels, leading to sustained price pressure, which in turn affects the profit expectations of companies like Micron Technology and Western Digital.

This divergence suggests that Vietnamese investors need to pay attention to industry rotation when allocating to US stocks. In the short term, the adjustment of the hardware sector may continue, while the AI software and service sector is expected to remain relatively strong supported by profits. It is recommended that Vietnamese investors focus on AI application layer companies (such as Salesforce, Adobe) and chip design companies (such as NVIDIA, AMD), while moderately avoiding hardware manufacturers with significant inventory pressure.

Federal Reserve Policy: Dovish Expectations of the September Rate Decision and Market Impact

The Federal Reserve's September rate decision became a market focus. According to the latest economic data, the US CPI grew 3.1% year-on-year in August, a slight decline from 3.2% in July, but core CPI remained at a high of 3.5%. In the labor market, non-farm payrolls increased by 187,000 in August, below the market expectation of 200,000, and the unemployment rate stayed at 3.8%. These data have raised market expectations for a Fed rate cut in September, with the market generally expecting a 25 basis point cut and 1-2 more cuts by the end of the year.

Dovish policy expectations support the US stock market, especially growth-oriented tech stocks, as lower interest rates reduce the discount rate and enhance the valuations of high-value companies. However, hawkish remarks from Fed officials (such as emphasizing inflation stickiness) also bring uncertainty. For example, Fed Governor Waller recently stated that it will take time for inflation to return to the 2% target, leading to divergent expectations about the pace of rate cuts.

For Vietnamese investors, the impact of Federal Reserve policy mainly lies in the exchange rate and capital flow aspects. If the Fed cuts rates, the US dollar may weaken, and the Vietnamese dong's exchange rate against the US dollar may appreciate, reducing the cost for Vietnamese investors to allocate to US stocks. At the same time, dovish policies help maintain liquidity in the US stock market and attract more cross-border capital inflows, including Vietnamese capital.

Vietnam's Capital Flows: New Features and Allocation Strategies in September

Capital Flow Trends: Rebalancing from Tech Stocks to Traditional Industries

In September 2026, Vietnam's capital flows to the US stock market showed a "rebalancing" feature. According to data from the State Bank of Vietnam, the scale of Vietnam's capital inflow into the US stock market reached a historical high in August, with tech stocks accounting for about 65%. Entering September, as tech stock divergence intensified, Vietnamese investors began to increase allocations to traditional industries (such as consumer, healthcare, and utilities) to diversify risks. For example, Vietnam's QFII (Qualified Foreign Institutional Investor) accounts increased holdings of consumer and healthcare stocks like Coca-Cola (KO) and Johnson & Johnson (JNJ) in September, while reducing some overvalued tech stocks.

This rebalancing reflects the improved maturity of Vietnamese investors. In recent years, Vietnamese capital was overly concentrated in tech stocks, leading to high volatility. Now, through diversified allocation, investors can reduce risks while maintaining returns. For ordinary Vietnamese investors, it is recommended to follow this trend and build a "core-satellite" investment portfolio: the core part allocates low-volatility traditional industry ETFs (such as S&P 500 Consumer ETF, Healthcare ETF), and the satellite part allocates high-growth tech stocks (such as Nasdaq 100 ETF).

Exchange Rate Factor: Allocation Advantages Under Vietnamese Dong Appreciation

In September 2026, the Vietnamese dong's exchange rate against the US dollar showed an appreciation trend, mainly due to the expansion of Vietnam's current account surplus and increased foreign capital inflows. Data from the State Bank of Vietnam shows that Vietnam's foreign exchange reserves reached a record $120 billion in August, supporting the stability of the Vietnamese dong's exchange rate. The appreciation of the Vietnamese dong reduces the cost for Vietnamese investors to allocate to US stocks. For example, if the exchange rate of the Vietnamese dong against the US dollar appreciates from 1 USD = 25,000 VND to 1 USD = 24,500 VND, the cost of investing $10,000 in US stocks will decrease by about 2 million VND.

At the same time, the appreciation of the Vietnamese dong also affects the returns of US stock investments. If the US stock market rises by 10% and the Vietnamese dong appreciates by 5%, the actual return for Vietnamese investors will be about 15% (after deducting exchange rate impact). Therefore, when allocating to US stocks, Vietnamese investors need to consider the impact of exchange rate fluctuations. They can hedge exchange rate risks through foreign exchange derivatives (such as forward contracts) or indirectly participate in the US stock market by choosing VND-denominated ETFs (such as Vietnam Market ETF).

Investment Strategy Recommendations: How Vietnamese Investors Can Seize US Stock Opportunities in September

• Long-term Allocation: Focus on Global Leaders and AI Mainline: Regardless of short-term market volatility, global leading companies in the US stock market (such as Apple, Microsoft, Google) have strong moats and profitability, making them suitable for long-term holding. As the core of the technological revolution, leading companies in the AI industrial chain (such as NVIDIA, AMD) are expected to continue benefiting. It is recommended that Vietnamese investors allocate through ETFs (such as Nasdaq 100 ETF, S&P 500 Tech ETF).
• Short-term Swing Trading: Focus on Industry Rotation and Policy Signals: The US stock market may fluctuate in September due to Federal Reserve policy and economic data, and Vietnamese investors can pay attention to industry rotation opportunities. For example, if the Fed releases dovish signals, growth-oriented tech stocks may rebound; if economic data exceeds expectations, traditional industries (such as finance, energy) may strengthen. It is recommended to judge trends through technical analysis (such as moving averages, MACD) and adjust positions in a timely manner.
• Risk Management: Diversified Allocation and Exchange Rate Hedging: Vietnamese investors need to pay attention to the volatility of the US stock market and exchange rate risks. Diversifying allocations across different industries and regions (such as US stocks, Vietnamese stock market, bonds) can reduce single-market risks. At the same time, use foreign exchange tools to hedge exchange rate fluctuations, such as locking in exchange rates through banks' foreign exchange forward contracts to avoid shrinkage of returns due to Vietnamese dong appreciation.

Conclusion: Finding Certainty Amid Divergence

In September 2026, the US stock market presented a complex situation amid tech stock divergence and Federal Reserve policy expectations, but the long-term trend remains clear: the AI technological revolution and the competitiveness of global leading companies are the core drivers of the US stock market. Vietnamese investors need to combine their own risk tolerance, formulate long-term allocation and short-term swing strategies, and find certainty amid market divergence. At the same time, pay attention to the new features of Vietnam's capital flows and exchange rate changes, optimize the investment portfolio, and achieve a balance between returns and risks.