The S&P 500 Index has been scaling new highs, powered by the AI boom, resilient earnings and a still-growing economy. Current trends suggest that the index is no longer a diversified investment and is now heavily concentrated in semiconductor stocks, indicating a concentration issue.
Semiconductors Dominate The S&P 500
According to a detailed analysis by market commentator Bull Theory, the returns of the broad market index depend on the performance of the semiconductor sector. This is because semiconductors now account for 18% of the S&P 500, up 2% from 10 years ago and more than double the peak concentration seen during the dot-com bubble.
Notably, semiconductor companies have accounted for roughly 70% of the entire S&P 500’s market cap gains this year. The PHLX Semiconductor Index (SOX) has gained about 79% since the start of the year and 162.7% over the past year.
The S&P 500 rose about 10% since the start of the year, extending its largest winning streak since December 2023. It has risen for eight weeks in a row. Only half of S&P 500 stocks are trading above key technical levels,” the analysis revealed.
Goldman lifted the year-end price target for the index to 8,000 from 7,600, citing strong earnings growth, particularly from AI stocks. Per the firm’s consensus estimates, Nvidia Corp. (NASDAQ:NVDA) and Micron Technology Inc. (NASDAQ:MU) alone could account for roughly one-third of S&P 500 EPS growth this year.
Top 10 S&P 500 Stocks Tied To AI Chips
The 10 largest companies now account for roughly 40% of the entire index, with AI-linked stocks pulling in an outsized share of new money.
According to the bull theory, “When you buy an S&P 500 index fund thinking you are diversified, you are actually making a concentrated bet on one single industry and one single theme: AI CHIPS.”
Seaport Research Partners analyst Jay Goldberg said the AI boom is reshaping the semiconductor industry, driving long-term demand across memory, networking, power semiconductors, and AI infrastructure companies.
Is This A Warning Sign?
This trend reflects a warning sign, as it resembles the 2000 trade when software and internet stocks dominated the index at 25% before collapsing. That sector is now back below 10%.
The analysis noted that the dominance of a single industry in the S&P 500 last time led to a stock market crash, which took 15 years to recover.
Photo courtesy: Shutterstock
Recent Comments