In this article, we will list the Top 5 S&P 500 Stocks by Index Weight. Please visit Top 30 S&P 500 Stocks by Index Weight if you would like to see the extended list and the methodology behind it.

5. Alphabet Inc. (NASDAQ:GOOGL)

Index Weight: 3.31%

Number of Hedge Fund Holders: 288

Alphabet Inc. (NASDAQ:GOOGL) is a leading S&P 500 stock by index weight. On April 15, Google announced a partnership with Cadence Design Systems to advance automated chip design and verification processes.

The strategic partnership also seeks to optimize Cadence ChipStack AI Super-Agent with Gemini on Google Cloud. The ultimate goal is to create an agent-driven, scalable, cloud native platform for next-generation chip design. The integration will allow design teams to compress chip development cycles, improve efficiency, and increase time-to-tape-out.

The Cadence Google partnership marks an important milestone in the push to scale AI-driven design automation. The collaboration is also poised to leverage Google Cloud’s secure elastic compute infrastructure to deliver the compute needed for Gemini’s LLM reasoning.

Earlier, Google Cloud expanded its collaboration with GitLab Inc. to allow customers to use Vertex AI models within the GitLab Duo Agent Platform. The collaboration will also allow AI agents to access foundation models, including Gemini models.

Alphabet Inc. (NASDAQ:GOOGL) is a technology holding company and the parent of Google. It generates revenue primarily through advertising, cloud computing, and hardware, while overseeing “Other Bets”—subsidiaries in fields like artificial intelligence, autonomous driving (Waymo), and healthcare.

4. Amazon.com, Inc. (NASDAQ:AMZN)

Index Weight: 4.19%

Number of Hedge Fund Holders: 381

Amazon.com, Inc. (NASDAQ:AMZN) is one of the top S&P 500 stocks by index weight. On April 15, Loop Capital reiterated a Buy rating on Amazon.com, Inc. (NASDAQ:AMZN) with a $360 price target. The research firm remains bullish on the e-commerce giant following its acquisition of Globalstar at $90 per share.

The Globalstar acquisition is poised to expand Amazon’s satellite service by integrating its direct-to-device service into the low Earth orbit network. The acquisition is poised to strengthen Amazon’s Leo satellite business as it continues to take on Elon Musk’s SpaceX. Amazon is to leverage Globalstar to build its own direct-to-device satellite system ahead of potential deployment in 2028.

According to Loop Capital, the Globalstar acquisition has been an indirect overhang on the retail segment’s margins. The research firm expects the acquisition to remove the pressure. In addition, the research firm remains bullish on Amazon amid growing revenue contributions from AI services. The firm expects AWS revenue to accelerate as capacity becomes serviceable.

Amazon.com, Inc. (NASDAQ:AMZN) is a multinational technology company that operates a massive e-commerce marketplace for consumer goods and also dominates cloud computing (Amazon Web Services), online streaming, artificial intelligence, and digital advertising. It operates under principles of customer obsession, invention, and operational excellence.

3. Microsoft Corporation (NASDAQ:MSFT)

Index Weight: 4.79%

Number of Hedge Fund Holders: 312

Microsoft Corporation (NASDAQ:MSFT) is one of the top S&P 500 stocks by index weight. On April 15, KeyBanc reiterated an Overweight rating on Microsoft Corporation (NASDAQ:MSFT) and a $600 price target. According to the research firm, the company is well-positioned to benefit from rising public cloud spending.

Customer expectations for public cloud spending were up 3 points in the first quarter from the fourth quarter and up by 14 points compared to the same quarter last year. Amid the increase, a KeyBanc survey indicates that 85% of respondents are on track to increase their spending on the company’s cloud offerings on Azure . In addition, Microsoft continues to lead in AI workload security adoption.

Similarly, Microsoft is on the cusp of a long-term memory supply agreement with SK Hynix. The deal will allow the company to gain access to sufficient memory over the next five years to address concerns about component availability for data center expansion.

Microsoft Corporation (NASDAQ:MSFT) is a global technology company that develops, licenses, and supports a wide range of software, hardware, and cloud services. Its main businesses include Windows OS, Microsoft 365 productivity suite (Office), Azure cloud services, AI tools (Copilot), and Xbox gaming.

2. Apple Inc. (NASDAQ:AAPL)

Index Weight: 6.13%

Number of Hedge Fund Holders: 169

Apple Inc. (NASDAQ:AAPL) is one of the top S&P 500 stocks by index weight. On April 7, UBS reiterated a Neutral rating on Apple Inc. (NASDAQ:AAPL) and set a $280 price target, responding to analysis of the company’s App Store data from Sensor Tower.

The data indicated that the company achieved 7% growth in the March quarter, despite being weighed down by flat US growth. While the growth was up 80 basis points quarter over quarter, it was 180 basis points easier according to the research firm.

In the June quarter, Apple is expected to post a 12% growth, unchanged quarter over quarter. Evercore ISI has also raised concerns about slowing growth in the App Store due to renewed weakness in gaming. Amid the slow growth, the firm has maintained an outperform rating on the stock.

Apple is also facing challenges on the hardware front, especially with its upcoming foldable iPhone. Reports indicate the company has experienced engineering challenges that could delay the launch of its next flagship phone.

Apple Inc. (NASDAQ:AAPL) designs, manufactures, and markets smartphones, personal computers, tablets, wearables, and home accessories. The company develops its own operating systems (iOS, macOS) and provides digital services, including iCloud, Apple Pay, and content streaming through the App Store and Apple TV+.

1. NVIDIA Corporation (NASDAQ:NVDA)

Index Weight: 7.58%

Number of Hedge Fund Holders: 264

NVIDIA Corporation (NASDAQ:NVDA) is one of the top S&P 500 stocks by index weight. On April 14, NVIDIA Corporation (NASDAQ:NVDA) moved to strengthen its position and pursue new growth opportunities in quantum computing. The company unveiled Ising, a family of open-source AI models that address challenges in quantum processor calibration and error correction.

The NVIDIA Ising open model family will deliver the world’s best AI-based quantum processor calibration. It will also offer error correction decoding that is up to 2.5X faster and 3X more accurate. Consequently, it will allow researchers to tackle much larger, more complex problems faster and more accurately.

The solution is already in use in various institutions, including Atom Computing, Academia Sinica, Fermi National Accelerator Laboratory, and Harvard John A. Paulson School of Engineering.

Ising’s unveiling comes as Nvidia looks to tap into the quantum computing market, which is poised to surpass $11 billion in 2030. The growth is highly dependent on companies coming up with solutions that address critical engineering challenges, such as quantum error.

NVIDIA Corporation (NASDAQ:NVDA) is a technology company that pioneered the Graphics Processing Unit (GPU) and is now a global leader in accelerated computing and artificial intelligence (AI). It has evolved into a full-stack computing infrastructure company that powers AI factories, data centers, autonomous vehicles, and robotic applications.

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