The week ending July 17, 2026, will be remembered as a turbulent period for global equities, as a sharp correction in the artificial intelligence (AI) and semiconductor sectors sent ripples through international bourses. Compounded by escalating geopolitical tensions in the Middle East and shifting expectations around central bank monetary policies, major indexes across New York, Tokyo, and Europe experienced pronounced volatility.

If you are tracking your portfolio’s performance, here is exactly how the world’s most important stock markets fared this week.

1. New York Stock Market: Rotation Out of Mega-Cap Growth

Wall Street endured a challenging week as investors rapidly rotated out of high-flying technology names.

• The Benchmarks: The S&P 500 fell 1.55%, while the tech-heavy Nasdaq Composite dropped 2.9%. The ICE Semiconductor Index plummeted 10%.
• Sector Performance: Large-cap growth stocks bore the brunt of the damage, falling 4.12%. Conversely, value-oriented and rate-resilient sectors like Healthcare, Financials, and Consumer Staples offered shelter. Energy stocks also outperformed as crude oil prices jumped due to rising Iran hostilities.
• Macro Drivers: Economic data brought a “Goldilocks” scenario, with U.S. consumer prices (CPI) and producer prices (PPI) coming in cooler than expected. While easing inflation theoretically paves the way for future interest rate cuts, hawkish rhetoric from Federal Reserve officials kept the 10-year Treasury yield sticky near 4.55%.

2. Japan Stock Market: Nikkei Tumbles Into Correction

The Tokyo stock market faced the steepest liquidations of the week, driven heavily by a severe global pullback in chipmakers.

• The Benchmarks: Japan’s benchmark Nikkei 225 tumbled by an astonishing 4.03% on Friday alone, closing at 64,141.12. At its lowest point during the session, it was down over 6%.
• Correction Territory: The index is officially down 11.3% from its all-time high close achieved on June 25, firmly entering a technical market correction. The broader Topix also slipped 2.72% to finish at 3,919.21.
• Individual Losers: Memory and AI-adjacent stocks led the descent. Chip giant Kioxia Holdings plummeted 16.1%—its worst single day in years—while Sumco lost 15.17%. Market analysts noted that while long-term AI demand remains intact, investors are pausing to question the sustainability of soaring semiconductor prices.

3. European Stock Market: A Milder Move Sheltered by Value

Compared to the dramatic tech rout seen in the U.S. and Japan, European stock indexes experienced much milder moves, largely because European benchmarks have less concentration in AI and mega-cap technology firms.

• The Benchmarks: On Friday, July 17, Germany’s DAX edged down by 0.34% to close at 24,830.98 points. France’s CAC 40 slid 0.47% to wrap up at 8,338.81 points.
• The Outlier: The British FTSE 100 bucked the negative global trend, gaining 0.27% to close at 10,600.37 points. The FTSE benefited directly from its heavy weightings in commodity producers and traditional financial institutions, which were lifted by higher oil prices and banking resilience.

Looking Ahead to Next Week

As the initial wave of corporate earnings Broadens out from financials to other major industrial sectors, market volatility will likely hinge on Q2 guidance. Investors will remain highly sensitive to whether companies can deliver the massive revenue growth required to justify their current valuations.

Treasury yields were trimming earlier declines after a barrage of pre-Thanksgiving economic data added to the case for gradual Fed rate cuts .

The number of Americans who applied for unemployment benefits in the week before the Thanksgiving holiday dipped to a seven-month low in a sign of strength for a steadily expanding U.S. economy.