Middle East Conflict Reignites! International Oil Prices Soar, Market Cap of US Tech Giants Evaporates $5.4 Trillion

Introduction

On July 23, 2026, global financial markets were hit by a stunning storm. Escalating tensions in the Middle East caused international oil prices to surge, fueling market fears that US inflation would accelerate. As a result, US Treasury yields rose, with the 10-year yield breaking through the 4.7% mark, the highest since January 2025. This chain reaction triggered a broad sell-off in US tech stocks, with the combined market cap of the seven major tech giants evaporating by about $800 billion (approximately 5.4 trillion yuan), marking one of the most severe single-day corrections in financial markets in recent years.

Middle East Situation Sparks Market Panic, US Treasury Yields Hit Yearly High

On Thursday local time, geopolitical risks in the Middle East escalated sharply, causing international crude oil futures to surge and heightening market concerns over a potential disruption in global energy supply. This panic quickly spread to the US bond market, as investors expected inflation pressures to increase further, potentially forcing the Federal Reserve to start its rate hiking cycle earlier. Under this expectation, yields on multiple US Treasury maturities rose collectively, with the 10-year yield breaking through the 4.7% mark, the highest since January 2025.


The rise in US Treasury yields dealt a heavy blow to high-growth tech stocks. Since the discounting of these companies' future cash flows is highly sensitive to interest rate changes, market expectations of monetary policy tightening prompted investors to decisively flee the tech sector. Analysts pointed out that the current market environment is highly similar to the rapid rate hike period of the Federal Reserve in 2024, with tech stock valuations facing repricing pressure.

Data showed that all three major US stock indexes closed lower on Thursday. The Dow Jones Industrial Average fell 0.97%, the S&P 500 fell 1.21%, recording the largest single-day drop in a month; the Nasdaq suffered the most severe decline, dropping 2.15%. None of the seven major tech giants escaped, all ending in the red.

Google and Tesla Capital Expenditure Swells, Free Cash Flow Turns Negative Raising Questions

In the wave of tech stock sell-offs, Google parent Alphabet and Tesla became the storm's epicenter. The second-quarter fiscal 2026 earnings reports released by these two tech giants after the previous trading day confirmed investors' worst fears: due to significantly expanded capital expenditure on artificial intelligence (AI) infrastructure, both companies saw their free cash flow turn from positive to negative.

More worryingly, even with free cash flow in deficit, both companies decided to further raise their capital expenditure guidance after the earnings release. This move sparked strong market skepticism: can such massive investments yield corresponding commercial returns? Alphabet Class A shares plunged 7.13% on Thursday, while Tesla tumbled 14.52%, its largest single-day drop in over a year. Preliminary estimates showed that Tesla's market cap evaporated about $200 billion in a single day, and Alphabet's market cap shrank by about $300 billion.

In addition to the free cash flow turning negative, Tesla's second-quarter net profit also fell short of market expectations. Investors are concerned about the profit margins of its core business—electric vehicles—especially amid ongoing price wars and increasingly fierce market competition. Tesla faces the most short-selling pressure among the seven major US tech giants, but it is worth noting that some retail investors rushed to buy on the dip during Thursday's crash, with Tesla's stock briefly rising nearly 1.4% in after-hours trading, indicating that market divergence remains significant.

Sustainability of AI Investment Boom Under Question

This collective crash in tech stocks essentially reflects the market's collective doubt about the sustainability of the AI investment boom. Since the explosion of generative AI in 2023, major tech giants have poured massive amounts of money into data centers, GPU procurement, and AI model research and development. However, the speed of revenue conversion has fallen far short of expectations, and the uncertainty of return on investment has become the core of market anxiety.

Analysts pointed out that if large-scale capital expenditure cannot be translated into revenue growth and profit improvement, negative free cash flow will become the norm, posing a threat to long-term stock price performance. The market is currently in a transition phase from "AI dream" to "AI reality," and investors demand to see real business models and profit paths.

Intel Earnings Beat Expectations, After-Hours Stock Rebounds

Amid the widespread losses, Intel's second-quarter fiscal 2026 earnings report released after the market close provided a small bright spot. The company's quarterly revenue grew 25% year-over-year, the fastest growth rate in nearly 15 years. Driven by the AI infrastructure investment boom, Intel's third-quarter guidance also significantly exceeded market expectations. Intel's stock closed down 2.33% on Thursday, but after the earnings release, it briefly turned positive, rising nearly 4% in after-hours trading.

Some analysts noted that market concerns over the sustainability of AI capital expenditure are widespread, and Intel's better-than-expected earnings have somewhat restored investor confidence in such companies, but it is not a "complete turnaround." Metrics such as gross margin, free cash flow, and the return on investment of its chip foundry business will be the core focus for investors going forward.

European Markets Also Under Pressure

In Europe, the European Central Bank announced on Thursday that it would keep the three key interest rates in the euro area unchanged, in line with market expectations. However, the market's focus remained on the energy supply risks triggered by the Middle East situation. Europe's natural gas benchmark—the Dutch TTF natural gas futures main contract—closed above 61 euros per megawatt-hour on Thursday, indicating that the shadow of the energy crisis has not yet dissipated.

Under the pressure of surging energy prices, all three major European stock indexes closed lower on Thursday. The UK's FTSE 100 fell 0.73%, France's CAC 40 fell 1.64%, and Germany's DAX fell 1.56%. The European market will continue to face dual challenges from energy supply and inflation pressure in the short term.

Conclusion

Looking at the current global financial market landscape, geopolitical risks in the Middle East have become the core variable influencing risk asset movements. The resurgence of inflation expectations triggered by oil price spikes, rising US Treasury yields, and pressure on tech stock valuations present a typical sell-off pattern of high-interest-rate-sensitive assets. Whether the AI investment boom has reached a turning point still requires more earnings data and macroeconomic indicators to verify.

For investors, in the short term, close attention should be paid to the evolution of the Middle East situation, statements from the Federal Reserve on monetary policy, and the direction of tech giants' capital expenditure strategies. In the long run, although the AI industry has vast development space, the market has moved from a "pure story phase" to a phase that requires "real money" proof. Companies that can expand investment while maintaining profit growth and healthy cash flow are likely to gain true recognition from the capital markets.

In an uncertain market environment, risk management and diversified allocation will become investors' most important defense. Global financial markets are at a critical turning point, and the future direction will depend on the complex and profound interaction between geopolitics, monetary policy, and industry trends.