These are the 4 hottest stocks in the S&P 500 this year — and only one is in the 'Magnificent Seven'. Are they still buys?

All four of these stocks in the S&P 500 have more than doubled. Some of the names might surprise you.

| More on:
Multi-ethnic people looking at camera sitting at public place screaming, shouting and feeling overjoyed about their windfall, good news or sports victory.

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

This article was originally published on Fool.com. All figures quoted in US dollars unless otherwise stated.

The broader benchmark S&P 500 has ripped all year and is now up nearly 22%. The index is a bellwether for the entire market and includes 500 larger companies in many industries. Technically, the S&P 500 has more than 500 stocks because some companies have multiple classes of shares. With such a wide sample size, many stocks in the S&P 500 have performed worse than the broader index and many have performed better.

Here are the four hottest stocks in the S&P 500 so far this year, and believe it or not, only one is in the "Magnificent Seven." Can you still buy these stocks after such a good run?

1. Vistra Corp -- 224%

Utility stocks have had a bang-up year, as lower interest rates have led investors to gravitate toward dividend-paying stocks. However, something else has been fueling Vistra (NYSE: VST), the largest competitive power generator in the U.S. That, of course, is artificial intelligence. Interestingly, Vistra looks to be a potential "picks and shovels" trade for the AI sector, but in a very different way than semiconductors. AI is powered by data and data centers, which are very energy-intensive. Tech companies believe a good alternative could be to connect data centers to nuclear plants. Vistra owns four nuclear reactors after acquiring Energy Harbor in 2023.

2. Nvidia -- 172%

Investors shouldn't be surprised to see this name on the list, considering it's been arguably the most talked about ticker in the investing world. Nvidia (NASDAQ: NVDA) is the classic "picks and shovels" play on AI, designing chips that make AI possible. Nvidia's chips are used by some of the world's largest and most innovative tech companies, including OpenAI, Amazon, Google, and Microsoft. Some analysts estimate that Nvidia's market share for the AI semiconductors that helped make ChatGPT technology possible is between 70% and 95%. Since the start of 2023, Nvidia's revenue and profits have grown like a weed.

NVDA Revenue (Quarterly) Chart

NVDA Revenue (Quarterly) data by YCharts.

Palantir -- 153%

Palantir Technologies (NYSE: PLTR) went public during the pandemic in 2020, and it's been quite the ride ever since, with the stock up almost 370%. What does Palantir do? You guessed it: AI. Palantir uses AI to help people and organizations analyse vast quantities of data in a user-friendly way that doesn't require them to learn some of the more complex languages and techniques at the core of AI.

Palantir has constructed platforms that use AI to manipulate and manage data. The company then builds applications atop these platforms so humans with no AI expertise can analyze this data. The company's largest client is the U.S. government, and it has gotten large contracts with the U.S. State Department and the U.S. Army.

Constellation Energy -- 127%

Constellation Energy (NASDAQ: CEG) is the largest carbon-free energy producer in the U.S. It's based in Baltimore and owns sustainable energy assets, including wind and solar farms and hydropower plants. Roughly 90% of the energy from Constellation is carbon-free, and the company is responsible for 10% of all carbon-free energy in the U.S. Constellation also owns 21 nuclear reactors at 12 sites across the country, making it the largest operator of nuclear reactors in the U.S. Investors believe it could be a critical asset in the future powering of data centres and AI.

Earlier this year, Constellation's CEO Joe Dominguez cited AI as one of the industries it is seeing demand from in terms of nuclear energy. Constellation is projecting that major tech companies will invest $1 trillion in data centres over the next five years. 

Are these AI stocks buys?

AI has driven stocks to meteoric valuations, and this sentiment can be seen in the current price-to-earnings ratios of these four stocks.

NVDA PE Ratio Chart

NVDA PE Ratio data by YCharts.

All these companies are compelling given what they do and the potential for AI to fundamentally shift almost every aspect of our lives. I've never been a huge growth investor who buys companies at massive valuations. That's because the margin for error gets slim, and a simple miss on earnings or disappointing guidance can send the stock tumbling.

But for long-term investors who can handle some volatility, I think all of these stocks offer promise. Of these four, I like the utility names like Constellation and Vistra better right now. They've gotten expensive as a group, but pay dividends and are not entirely dependent on AI. So they can benefit from the AI boom, but also have other sources of business to fall back on if AI stumbles.

This article was originally published on Fool.com. All figures quoted in US dollars unless otherwise stated.

Bram Berkowitz has no position in any of the stocks mentioned. Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool’s board of directors. John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended Alphabet, Amazon, Constellation Energy, Microsoft, Nvidia, and Palantir Technologies. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has recommended the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool Australia has recommended Alphabet, Amazon, Microsoft, and Nvidia. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on International Stock News

A woman looks questioning as she puts a coin into a piggy bank.
International Stock News

Should you buy this "Magnificent Seven" stock before 2026?

Alphabet remains one of the top growth stocks to buy.

Read more »

A young woman sits with her hand to her chin staring off to the side thinking about her investments.
International Stock News

Where will Nvidia stock be in 5 years?

Nvidia's success is tied to the spending plans of others.

Read more »

A woman sits at her computer with her chin resting on her hand as she contemplates her next potential investment.
International Stock News

Should you invest $1,000 in Alphabet right now?

This stock has surged 63% higher in 2025 and now sports a $3.7 trillion market cap.

Read more »

A white EV car and an electric vehicle pump with green highlighted swirls representing ASX lithium shares
International Stock News

If you had invested $5,000 in Tesla stock 1 year ago, here's how much you would have today

Tesla's stock has lagged the S&P 500.

Read more »

A woman sits at her computer with her hand to her mouth and a contemplative smile on her face as she reads about the performance of Allkem shares on her computer
International Stock News

A new leadership group is emerging at Berkshire Hathaway. Here are some changes that could be in store for Warren Buffett's massive holding company.

It's beginning to look like Berkshire Hathaway may do some things differently once Warren Buffett retires.

Read more »

AI written in blue on a digital chip.
International Stock News

Down 17% from recent highs, is Nvidia stock a buy?

The stock has become more attractive recently. But have shares fallen enough to make them a buy?

Read more »

Woman and man calculating a dividend yield.
International Stock News

As 2026 gets closer, Warren Buffett's warning is ringing loud and clear. Here are 3 things investors should do.

Investors should be prepared for all kinds of scenarios.

Read more »

Hand with AI in capital letters and AI-related digital icons.
International Stock News

Better (almost) $4 trillion AI stock to buy now: Microsoft or Alphabet

Both of these top tech companies have established leadership roles in the AI industry.

Read more »