Stock Market, Sept. 24, 2025: Dow, S&P 500 and Nasdaq log back-to-back losses as tech stocks retreat on AI spending concerns; Alibaba soars

On September 24, 2025, major U.S. equity indexes, including the Dow, S&P 500, and Nasdaq, recorded back-to-back losses, primarily driven by a retreat in megacap technology stocks amid concerns over AI spending. Notably, Alibaba Group Holding Ltd. bucked the trend, experiencing a significant surge.

Analysis

Major U.S. equity indexes, including the Dow Jones Industrial Average (DIA), S&P 500 (SPY), and Nasdaq (QQQ), registered a second consecutive day of losses on September 24, 2025. The downturn was led by a retreat in megacap technology stocks, attributed to investor concerns over the scale and profitability of AI-related spending. This is substantiated by the moderately negative sentiment scores for the DIA and SPY (-0.5) and a more pronounced bearish sentiment for the tech-heavy QQQ (-0.6). In a significant divergence from this trend, Alibaba Group Holding Ltd. (BABA) experienced a surge, reflected in its strong positive sentiment score of 0.7. This counter-market performance suggests that company-specific factors are outweighing the broader sector headwinds affecting its U.S. technology counterparts.

Key Decisions for Investors

• Investors with heavy exposure to U.S. megacap technology should re-evaluate positions, as sentiment may remain negative until there is greater clarity on the return on investment from elevated AI-related capital expenditures.
• The outperformance of Alibaba (BABA) amidst a broad tech sell-off warrants attention; consider investigating the company-specific catalysts driving its strength as a potential diversification from U.S. market concentration.
• Given the back-to-back declines and bearish tone, it may be prudent to monitor for further weakness in the Nasdaq (QQQ) as a leading indicator for broader market health and consider tactical hedges against further tech-led downturns.