Analysts say Big Tech earnings must show that massive AI investments are generating sufficient revenue and cash flow to justify the cost.

Tech stocks plunged, led by a steep drop in South Korea’s benchmark index, as concerns over soaring A.I. spending and stubborn inflation fueled a sell-off.

AI-focused software shed $260 billion in value as Goldman Sachs raised alarms about debt financing, triggering sharp momentum reversal, today, Oct. 16, 2026.

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U.S. stocks fell, led by the Nasdaq composite, as chip and AI-related shares came under new pressure.

Stocks futures were mixed on Friday, with the S&P 500 and Nasdaq on track for weekly losses, capping a volatile week.

The technology sector is known for high growth and high volatility, and tech sector stocks have produced tremendous gains in recent years.

Wednesday’s CPI data revived concerns about higher interest rates and sparked a global sell-off in memory-chip stocks.

Oil prices jumped sharply Friday to their highest levels in weeks, as investors assessed the impact of both the Iran and Ukraine-Russia wars on global energy.

Long-term Treasury yields were plunging Thursday morning amid concerns about the selloff in technology stocks. Traders were also weighing a hotter-than-expected wholesale inflation report. The yield on the 30-year Treasury note was down about 12 basis points to around 5.

Market SummaryWhen the protagonists that have been driving a robust market begin to show signs of weakness, where will investment capital head? On October 16, the US stock market saw all four major indices decline,