US Big Tech Rally Stalls: Receding Fed Rate Cut Expectations and the Impact of Upcoming PCE Data

Introduction: The Stalled Big Tech Rally and Market Caution

The US stock market is currently experiencing a sharp expansion in volatility as large-scale profit-taking emerges in the mega-cap technology sector, which had recently been driving the market to successive all-time highs. The significant short-term decline in share prices of major companies like Nvidia, Apple, and Microsoft is amplifying investor anxiety. This phenomenon should not be viewed merely as a short-term price correction for overheated stocks. Rather, it must be interpreted as a structural and complex shift in capital flows triggered by unexpectedly robust macroeconomic data and resulting changes in central bank monetary policy outlooks.

Receding Fed Rate Cut Expectations and Rebounding Treasury Yields

With recent key macroeconomic indicators in the US—such as employment and consumer spending—continuing to show solid growth, expectations for an early interest rate cut by the Federal Reserve are rapidly receding. Market participants are aggressively scaling back both the frequency and magnitude of rate cuts initially anticipated for the latter half of the year. This shift in sentiment has immediately translated into a distinct rebound in US Treasury yields.

• The Ripple Effect of Rising Treasury Yields: An increase in the 10-year and 2-year Treasury yields, which serve as benchmarks for the risk-free rate, places a heavy burden on the broader equity market. Technology stocks, in particular—which command high valuations based on expectations of explosive future earnings growth—face direct and critical downward valuation pressure as the discount rate applied to their future cash flows rises.
• Contraction of Risk Asset Sentiment: As the "higher for longer" interest rate environment is reaffirmed as the market's baseline scenario, a strong risk-aversion sentiment is taking hold. Investors are increasingly seeking to withdraw liquidity from risk assets across the board, including not only equities but also cryptocurrencies.

Big Tech Profit-Taking: Accumulated Valuation Pressure and Institutional Rebalancing

Spearheaded by Nvidia, major Big Tech firms have sustained a historic, long-term rally over the past several months, driven by the powerful momentum of artificial intelligence (AI) industry innovation. However, beneath the steep ascent in stock prices, concerns over stretched valuations have steadily accumulated. The aforementioned unfavorable shifts in the interest rate environment ultimately served as the direct trigger for massive profit-taking.

Major global pension funds, large hedge funds, and other institutional investors are mechanically reducing their overweight positions in Big Tech as a proactive risk management strategy to lock in maximized profits. This asset allocation adjustment is leading a chain reaction of declines across the technology sector, including semiconductor indices. The market has now transitioned from trading on vague optimism about the rosy future of the AI industry to an earnings-driven phase, where it stringently verifies whether the actual earnings growth provided by companies can numerically justify their current high price-to-earnings (P/E) multiples.

This Week's Core Variable: The May PCE Price Index and Deepening Caution

Currently, the undivided attention of global financial markets is locked onto the US Core Personal Consumption Expenditures (PCE) price index, scheduled for release later this week. The PCE is the inflation metric the Fed considers most critical when determining monetary policy. The outcome of this data will serve as a crucial watershed moment, dictating the clear directional path for US interest rates moving forward.

• If a Disinflationary Trend is Confirmed: Should inflation meet or fall below market expectations, proving a continued disinflationary trend, the market will likely breathe a sigh of relief, shedding fears of reignited inflation. This scenario would highly likely trigger a drop in bond yields and prompt an attempted rebound in the equity market, led by Big Tech.
• If Upward Price Pressures Persist: Conversely, if the data exceeds expectations due to sticky components like housing or service prices, the situation could deteriorate significantly. Expectations for rate cuts would effectively evaporate, and the risk of downward volatility and a much deeper correction across the broader stock market—including the tech sector—would remain a persistent threat.

Conclusion: A Crucial Phase Demanding Risk Management and Data Verification

The stock market is currently navigating a highly sensitive phase where natural fatigue from a prolonged rally acutely intersects with macroeconomic uncertainties surrounding monetary policy. Investors are expected to maintain an extremely cautious, wait-and-see stance until they can closely scrutinize the upcoming PCE inflation data, followed by the quarterly earnings and forward guidance of major Big Tech companies. In this highly volatile market environment, premature bottom-fishing or aggressive directional betting should be avoided. Instead, conservative, data-driven responses and rigorous risk management are more essential now than ever.