The Nasdaq-100 recently shook off a very short-lived trip into bear territory, which occurred after President Trump announced his "Liberation Day" tariffs in April. The index set a fresh record high in June, which marked the official beginning of a new bull market.

The Nasdaq-100 is home to many of the tech giants that are leading the artificial intelligence (AI) revolution. Now that investors feel confident that a global trade war will be averted, they are piling back into these AI powerhouses that continue to generate incredible revenue and earnings growth.

Investors who haven't owned a slice of the AI industry over the last couple of years have probably underperformed the broader market, but it isn't too late. The Roundhill Generative AI and Technology ETF (CHAT -3.29%) is an exchange-traded fund (ETF) that holds 40 leading AI stocks, and it could be a great addition to any diversified portfolio. The best part is that a single share will cost investors under $60.

A digital render of an artificial intelligence chip with colored rays shooting out of it.

Image source: Getty Images.

Large holdings in some of the world's best AI stocks

The Roundhill ETF invests exclusively in the companies developing the infrastructure, platforms, and software powering the AI revolution. Despite holding 40 different stocks, the ETF is quite top-heavy, with its five largest positions accounting for 25.7% of the total value of its portfolio, and they are among the leaders in those three AI segments:

  1. Nvidia's (NVDA -3.47%) advanced graphics processing units (GPUs) for data centers are the most sought-after chips among AI developers. They deliver faster processing speeds and lower energy consumption than anything else on the market, which is why demand consistently outstrips supply.
  2. Alphabet (GOOGL -0.96%) (GOOG -0.92%) might be known for its dominant Google Search platform, but over 85,000 organizations are using its Gemini large language models (LLMs) to develop their own AI software. Gemini LLMs are accessible through Google Cloud, which also offers access to state-of-the-art data centers powered by Nvidia's GPUs.
  3. Meta Platforms (META -2.12%) is using AI in the content recommendation engines across its social media platforms, like Facebook and Instagram. The company also developed the world's most popular open-source LLM called Llama, which it has used to create exciting new products like the Meta AI chatbot.
  4. Microsoft (MSFT -1.43%) created a powerful AI assistant called Copilot, which it embedded into its flagship software products like Windows, Edge, and 365. The company also operates one of the world's largest cloud platforms, called Azure, where it offers AI data center capacity to businesses and access to LLMs developed by third parties like OpenAI.
  5. Oracle (ORCL -5.96%) is a leader in AI infrastructure. Its data centers are among the fastest and most cost-efficient in the industry, which is why top developers like Meta, OpenAI, and Elon Musk's xAI are lining up to use them.

Outside of its top five positions, the Roundhill ETF holds a number of other top AI stocks, including Palantir Technologies, Amazon, Broadcom, Advanced Micro Devices, and Apple.

The Roundhill ETF could be a great addition to a diversified portfolio

Investors shouldn't bet the farm on the Roundhill ETF because it's so concentrated, and if the AI boom falters, it could result in some steep losses. It's smarter to add it to a diversified portfolio of other ETFs and individual stocks instead.

The Roundhill ETF was only established in May 2023, so it doesn't have a very long track record for investors to analyze. However, it has delivered an incredible gain of 115% since then, trouncing the S&P 500, which is up by 56% over the same period, and the Nasdaq-100, which has returned 71%. Therefore, it could supercharge a portfolio that doesn't already have a high degree of exposure to the AI boom.

The Roundhill ETF is actively managed, which means a team of professionals regularly buys and sells stocks based on what they think will deliver the best returns. That comes with added costs, which is why the fund has a relatively high expense ratio of 0.75%. Many passive index funds issued by Vanguard have expense ratios as low as 0.03%, so an investment of $100,000 in one of those would incur an annual fee of just $30, compared to $750 for the Roundhill ETF.

This isn't an issue at the moment because the ETF's incredible performance is more than offsetting its costs, but it's something to keep in mind for the long term, especially if its returns start to slip. For now, this ETF looks like a great buy for investors who want to own a slice of the AI revolution.