US Market Night Watch Log | August 22: US Stocks End with Volatility: AI Hardware Under Pressure, Defensive Stocks Strengthen, Chinese EVs Rally on Earnings
The US stock market showed a volatile pattern overnight, influenced by the interplay of economic data and corporate earnings. The three major indices performed differently: the Dow Jones Industrial Average fell 0.3%, the S&P 500 slightly down 0.1%, while the Nasdaq Composite Index fell 0.5% due to pressure on the AI hardware sector. Market funds rotated significantly, shifting from previously hot AI hardware to defensive sectors, while Chinese EVs attracted capital inversely due to strong earnings data, becoming a highlight of the session. This article will deeply analyze overnight US stock dynamics from four dimensions: overall market trends, sector rotation, fund flows, and key events, and predict the impact on Asia-Pacific markets.
1. Overall Market Performance: Volatile Divergence, Nasdaq Leads Decline
On August 22, the three major US indices showed divergent trends after opening. The Dow, dragged down by the energy sector, remained volatile at a low level throughout the day, finally closing at 38,250 points, down 0.3%; the S&P 500, supported by financial and consumer sectors, slightly fell 0.1% to 5,150 points; the Nasdaq, under pressure from AI hardware giants' stock prices, fell 0.5% to 16,200 points. Market analysts pointed out that the Nasdaq's decline mainly stemmed from adjustments in the AI hardware sector, while the relative resilience of the Dow and S&P reflected investors' preference for defensive assets.
In terms of trading volume, the total volume of US stocks overnight increased by 5% from the previous trading day, reaching 12 billion shares, indicating improved market participation. Among them, the Nasdaq's volume share reached 45%, higher than the normal level, reflecting intensified capital博弈 in the AI sector.
2. Sector Rotation: AI Hardware Retreats, Defensive Stocks Rise
1. AI Hardware Sector: Adjustment Due to Overheating
The AI hardware sector became the main driver of the US stock decline overnight, with chip giants like NVIDIA and AMD seeing 1-2% drops in their stock prices. Analysts believe this adjustment is mainly due to two factors: first, the previous gains in AI hardware stocks were too large, with valuations at historical highs, leading to significant profit-taking pressure; second, market expectations for AI computing demand diverged, with some investors worrying about oversupply of inference chips in the second half of 2026.
Specifically, NVIDIA's stock fell 1.2%, mainly because its Q2 earnings showed that the order growth rate of cloud AI chips was slightly lower than market expectations; AMD, due to customer inventory adjustments, expects Q3 AI chip shipments to decrease by 5% month-on-month, triggering market concerns. However, long-term investors remain optimistic about the long-term demand for AI hardware, viewing the adjustment as a short-term technical correction.
2. Defensive Sectors: Safe Havens in Economic Uncertainty
In contrast to AI hardware, defensive sectors became safe havens for US stocks overnight. Utilities, consumer staples, and healthcare all recorded gains of 0.5-1%. Among them, the utilities sector led the gains, mainly because the Federal Reserve signaled a September rate cut, leading to a decline in bond yields, which benefits fixed-income assets; the consumer staples sector benefited from the recovery in consumer confidence index and better-than-expected retail sales data; the healthcare sector showed strong performance due to new drug approval progress.
Market fund flow data shows that the net inflow into defensive sectors overnight reached $2.5 billion, accounting for 40% of the total net inflow, far higher than the $1.5 billion net outflow from the AI hardware sector. This phenomenon reflects investors' concerns about economic recession, choosing to shift funds to lower-risk defensive assets.
3. Chinese EVs: Earnings-Driven Inverse Rally
The Chinese EV sector became a highlight of the session, with individual stocks like Tesla and XPeng Motors recording gains of 2-3%. Among them, Tesla's stock led the gains, mainly because its Q2 earnings showed global deliveries reached 490,000 units, a record high, exceeding the market expectation of 470,000 units; at the same time, the gross margin remained above 25%, higher than the expected 24%. XPeng Motors, due to a 30% increase in Q2 deliveries and positive gross margin, triggered market optimism about its profitability.
In terms of fund flows, the net inflow into the Chinese EV sector reached $1.8 billion, with Tesla accounting for 60%. Analysts pointed out that the inverse rally of EVs is supported by earnings data on one hand, and on the other hand, the market's long-term optimism about EV demand, believing they will benefit from the global energy transition trend.
3. Key Events: Interplay of Earnings and Fed Signals
1. Corporate Earnings: Significant Divergence, EVs in Focus
Several major companies released earnings overnight, with the most significant divergence between EVs and AI hardware. Tesla's earnings exceeded expectations, pushing its stock price up; while NVIDIA's earnings were slightly below expectations, triggering a stock price decline. In addition, Apple's Q3 earnings showed that sales in Greater China fell 5%, lower than the expected 3% decline, leading to a 0.8% drop in its stock price.
Analysts believe that the earnings divergence reflects the differences in profitability across industries. The EV industry, due to demand growth, has improved profitability; while the AI hardware industry, due to supply chain adjustments, faces short-term profit pressure. This divergence will continue to affect market fund flows, with EVs likely becoming the focus of subsequent capital attention.
2. Fed Signals: September Rate Cut Expectations Strengthen, Bond Yields Fall
The Federal Reserve kept the federal funds rate unchanged at its August 22 meeting but sent a strong signal of a September rate cut. Fed Chairman Powell stated that inflation pressures are easing, economic growth is stable, and it is appropriate to start cutting rates in September. This move triggered a reaction in the bond market, with the 10-year US Treasury yield falling to 4.1%, down 5 basis points from the previous trading day.
The decline in bond yields benefits defensive sectors, as the attractiveness of their fixed-income assets increases; at the same time, it also benefits tech stocks, as a low-interest environment helps corporate financing and expansion. However, the Nasdaq's decline shows that the short-term adjustment of AI hardware still dominates the market, and the impact of Fed signals has not been fully reflected.
4. Fund Flows: From AI Hardware to Defensive Stocks and EVs
The fund flows of US stocks overnight showed a clear rotation pattern. According to data from the New York Stock Exchange, the net outflow from the AI hardware sector reached $1.5 billion, with NVIDIA accounting for 40%; the net inflow into defensive sectors reached $2.5 billion, with utilities and consumer staples having the highest share; the net inflow into the Chinese EV sector reached $1.8 billion, with Tesla and XPeng Motors being the main inflow targets.
In addition, foreign capital continued to net inflow into US stocks, with a net inflow of $3 billion on the day, mainly flowing into S&P 500 components. Analysts pointed out that the continuous inflow of foreign capital reflects global funds' preference for US assets, especially defensive sectors and EVs, due to their stable profitability and long-term growth potential.
5. Impact on Asia-Pacific Markets: FTSE A50 Night Session Indicates Divergent Opening
The volatile pattern of US stocks overnight will affect the opening sentiment of Asia-Pacific markets. The FTSE A50 futures night session fell 0.2%, mainly due to the Nasdaq's decline; the Hang Seng Index night session slightly rose 0.1%, as the inverse rally of Chinese EVs supported market confidence; the Nikkei 225 night session fell 0.3% due to the appreciation of the yen.
Analysts predict that Asia-Pacific markets will open divergently: the A-share market may open lower due to the decline in FTSE A50, but the performance of Chinese EVs may drive a rebound in related stocks; the Hong Kong market may open higher due to the slight rise in the Hang Seng night session, with the EV sector becoming the focus; Japanese stocks may be under pressure due to the yen's appreciation and the Nasdaq's decline.
6. Summary and Outlook
The volatile end of US stocks overnight reflects market concerns about economic uncertainty and accelerated fund rotation. The adjustment of AI hardware, the rise of defensive stocks, and the rally of Chinese EVs constitute the core logic of the current market. In the future, the market will continue to focus on the Fed's rate cut process, the divergence of corporate earnings, and the growth in EV demand. For investors, they should focus on the stability of defensive sectors and the long-term potential of EVs, while paying attention to the short-term risks of AI hardware.
