US Stocks Close: S&P 500 Hits All-Time High
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 1h ago
0mins
Source: NASDAQ.COM
- S&P 500 Hits All-Time High: The S&P 500 index rose 0.41% on Tuesday, achieving a new all-time high, reflecting strong market confidence in tech stocks and chipmakers, particularly after Micron Technology announced a $24 billion investment in Singapore to expand memory chip capacity.
- Nasdaq Performance Strong: The Nasdaq 100 index increased by 0.88%, reaching a 2.75-month high, indicating investor optimism in AI infrastructure and semiconductor sectors, which propelled the broader market higher.
- Consumer Confidence Index Declines: Despite the stock market gains, the US January consumer confidence index unexpectedly fell to an 11.5-year low of 84.5, highlighting economic uncertainty that could negatively impact future consumer spending.
- Health Insurance Stocks Under Pressure: The proposal by the US government to keep payments to private Medicare plans flat next year led to a broad decline in health insurance stocks, with UnitedHealth Group forecasting a revenue contraction in 2026, marking the first annual decline in over 30 years, raising further market concerns.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.








