The 'AI Big 10': 10 AI Stocks Now Comprise 28% Of The S&P, Up From 14% In 2023

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The SPDR S&P 500 ETF Trust (NYSE: SPY) has appreciated by over 30% in the past eight months, a dichotomy from the once-bearish market. The 10 largest artificial intelligence (AI) stocks now comprise an outsized part of the S&P 500, indicating investor optimism in AI's future.

The Data: A post on X shared a Bank of America chart depicting the "Big 10" AI stocks as a percentage of the S&P 500's total value.

The top 10 AI-related stocks now hold a record-high share of the S&P 500, more than doubling their weighting since early 2023, before the release of OpenAI's ChatGPT.

The "AI Big 10": The following companies comprise the so-called AI "Big 10."

  • Microsoft Corp (NASDAQ: MSFT), 6.82% of the S&P 500.
  • NVIDIA Corp (NASDAQ: NVDA), 6.73% of the S&P 500.
  • Alphabet Inc (NASDAQ: GOOGL) (NASDAQ: GOOG), 4.49% of the S&P 500.
  • Amazon.com Inc (NASDAQ: AMZN), 3.92% of the S&P 500.
  • Meta Platforms Inc (NASDAQ: META), 2.62% of the S&P 500.
  • Broadcom Inc (NASDAQ: AVGO), 1.73% of the S&P 500.
  • Qualcomm Inc (NASDAQ: QCOM), 0.52% of the S&P 500.
  • Advanced Micro Devices, Inc (NASDAQ: AMD), 0.52% of the S&P 500.
  • Applied Materials, Inc (NASDAQ: AMAT), 0.42% of the S&P 500.
  • Micron Technology Inc (NASDAQ: MU), 0.35% of the S&P 500.
Why it Matters: The S&P 500's sky-high performance amid tough macro conditions can largely be attributed to the proliferation of AI. On its own, NVIDIA's eye-popping performance has accounted for around half of the S&P 500's advance in 2024. In the meantime, other industries have struggled.

In recent months, other AI and AI-adjacent stocks have been added to the index. Super Micro Computer Inc (NASDAQ: SMCI) was added to the S&P in March, while cybersecurity company CrowdStrike Holdings Inc (NASDAQ: CRWD) will be added next week.