AI‑linked stocks account for two‑thirds of S&P 500 gains in 2024
NEWZA Editorial Team•
⚡ Key Financial Takeaways
42 AI stocks produced 67% of the S&P 500’s price return since the start of 2024.
Those AI names contributed 58% of earnings growth and 81% of capital‑expenditure and R&D expansion.
The remaining 458 S&P 500 constituents added only 11 percentage points to the index’s 33% gain.
Only 29% of all S&P 500 stocks have outperformed the index over the past three years, near the low seen during the 2000 dot‑com bubble.
💡 Why It Matters
The outsized contribution of a handful of AI stocks to price appreciation, earnings, and future‑growth spending means that the overall health of the U.S. equity market is now closely linked to the performance of a narrow technology segment. This concentration raises questions about market resilience, valuation risks, and the potential for a sector‑specific correction to affect the broader index.
AI stocks dominate the S&P 500 performance The Kobeissi Letter, a market‑analysis platform, identified that a narrow set of 42 artificial‑intelligence‑related companies have been responsible for the bulk of the S&P 500’s rally in 2024. Together they delivered 67% of the index’s price return, adding 22 percentage points to the overall 33% gain recorded since January.
Earnings and investment growth skewed toward AI Beyond price appreciation, the same AI cohort accounted for 58% of the index’s earnings growth. Their impact on spending is even more pronounced: 81% of the increase in capital expenditure (CapEx) and research‑and‑development (R&D) across the S&P 500 came from these firms, while the rest of the index contributed just 20% of that growth.
A market rally on a thin base The concentration mirrors historic tech‑driven bubbles. Only 29% of all S&P 500 stocks have outperformed the index over the past three years, a figure close to the roughly 25% low observed during the 2000 dot‑com surge. The Kobeissi Letter summed up the trend with a stark observation: “AI is all that matters.”
Market backdrop and near‑term outlook US equity futures were largely unchanged on Sunday night, with the S&P 500 up 0.12%, the Nasdaq 100 up 0.24% and the Dow Jones Industrial Average futures edging up 0.05% (28 points). The major U.S. indices had closed the previous week in positive territory, buoyed by a technology‑stock rally that offset higher oil prices and rising bond yields. The Dow and S&P each logged their second weekly gain in three weeks, while the Nasdaq extended its winning streak to four weeks.
Global market reaction Asian markets opened mixed on Monday: South Korea’s Kospi slipped 1.34%, Australia’s S&P/ASX 200 rose 0.61%, and Japan’s markets remained closed for a public holiday.
Implications for investors The data underscores how heavily the broader market’s performance now depends on a small group of AI‑centric firms. Investors with exposure to the broader index may find their returns increasingly tied to the fortunes of these companies, while those seeking diversification may need to look beyond the AI‑heavy segment.
Looking ahead The coming weeks will feature a busy corporate‑earnings calendar and key inflation releases, both of which could test whether the AI‑driven momentum sustains or wanes.
🏛️ Background & Context
The S&P 500’s 33% gain in 2024 is being driven largely by AI‑related firms, echoing patterns seen during previous technology bubbles such as the 2000 dot‑com era, when a small group of internet stocks lifted the broader market. The Kobeissi Letter’s analysis highlights that the current AI surge is not only boosting stock prices but also steering corporate investment in capital projects and research.
👁️ What To Watch Next
Investors should monitor upcoming earnings reports from the identified AI stocks, as well as macro‑economic data on inflation and interest rates that could influence risk appetite. Any shift in corporate spending trends or a slowdown in AI adoption could alter the current concentration dynamics.
