US Stocks Slide as Tech Leads Decline: Nasdaq and S&P 500 Short-Term Outlook

On Wednesday, the US stock market faced significant selling pressure, with all three major indices closing lower, led by the tech-heavy Nasdaq Composite. The S&P 500 and the Dow Jones Industrial Average were not spared either, as market sentiment shifted from early-week optimism to caution. Investors digested the latest corporate earnings and macroeconomic data while reassessing the high valuation risks in the tech sector.

Tech Stocks Lead Decline: Valuation vs. Earnings

The core driver of this decline was a broad pullback in large-cap tech stocks. Most of the "Magnificent Seven" stocks, including Apple, Microsoft, Nvidia, and Amazon, moved lower, dragging the Nasdaq's performance significantly below the broader market. Market analysts noted that tech stocks had accumulated substantial gains earlier, with some stocks' price-to-earnings ratios at historical highs. Amid lingering interest rate expectations, funds chose to take profits.

Additionally, the latest batch of tech earnings reports was mixed. While cloud computing and AI-related businesses continued to grow, some companies' advertising revenue or consumer electronics demand guidance fell short of expectations, raising concerns about the sustainability of industry growth. According to earnings call transcripts, several management teams highlighted the impact of macroeconomic uncertainty on customer budgets, further intensifying the selling pressure.

Nasdaq and S&P 500: Diverging Short-Term Trends

From a technical perspective, the Nasdaq index has broken below recent key support levels, with short-term moving averages in a bearish alignment. The Relative Strength Index (RSI) has entered oversold territory, but no clear reversal signal has emerged. Analysts believe that the dense trading zone near the previous highs will act as short-term resistance, while the 200-day moving average below may provide some support.

The S&P 500 has been relatively resilient, as cyclical sectors such as financials and energy partially offset the tech drag. The index remains near record highs, but if tech stocks continue to weaken, the S&P 500 could face catch-up downside risk. Market participants noted that earnings expectations for the S&P 500 are still being revised upward, providing fundamental support, but valuation expansion room is very limited.

Market Sentiment: From Greed to Caution

The CBOE Volatility Index (VIX), a measure of market sentiment, rose noticeably on Wednesday, indicating increased demand for hedging. In terms of fund flows, exchange data showed net outflows from tech ETFs, while defensive sectors such as utilities and healthcare recorded net inflows, suggesting that funds are seeking safe havens.

Meanwhile, a slight uptick in US Treasury yields also pressured growth stocks. The 10-year Treasury yield remained at the upper end of its recent range, diminishing the appeal of long-duration assets. According to recent Federal Reserve communications, the policy path still depends on inflation data, and market expectations for rate cuts have been pushed back, weighing on high-valuation tech stocks.

Outlook: Focus on Earnings and Policy Signals

In the short term, US stocks are likely to remain range-bound. Whether the tech pullback turns into a trend reversal depends on companies' guidance for upcoming quarters in the earnings season and whether macroeconomic data supports the "soft landing" narrative. If inflation continues to decline and the job market remains resilient, risk appetite could recover, potentially leading to a tech rebound. Conversely, if data disappoints, a deeper correction may ensue.

For investors, maintaining a balanced allocation and avoiding over-concentration in any single sector is advisable at this stage. Some institutions suggest focusing on reasonably valued tech sub-sectors such as semiconductor equipment and cybersecurity, while also considering relative opportunities in small-cap stocks and overseas markets. Overall, market sentiment has shifted from excessive optimism earlier this year to rationality, and increased volatility may become the norm.