Got $5,000? 3 Top Growth Stocks to Buy That Could Double Your Money.

You don't have to trade stocks and time the market when you can buy companies with solid fundamentals instead. These types of investments gain value over time. While any stock is vulnerable to a short-term correction, long-term catalysts and opportunities ultimately dictate how a stock's price moves.

If you have $5,000 to invest, you may want to take a closer look at these three growth stocks. They have the potential to double your money within a few years if you are patient.

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Robinhood has become a top choice for investing and speculating

Investors use various apps to buy and sell stocks, but Robinhood Markets (NASDAQ: HOOD) might be one of the best ones to buy. The fintech company has a long history of delivering high revenue growth. Its sales were up by almost 40% in 2023, and the following two years featured increases above 50%.

Trading activity in stocks and options has been a reliable grower for many years. Crypto transaction revenue is a bit more volatile. This part of the business was down by 38% year over year in the fourth quarter but up by more than 300% in the third. The performance of Robinhood's crypto segment depends heavily on crypto price movements and how investors feel about the alternative asset.

Even with sluggish crypto activity, Robinhood still delivered 15% year-over-year revenue growth. If investors exclude a $424 million tax benefit recorded in the 2024 fourth quarter, it also boosted its net income.

Crypto serves as an excellent bonus, but its success isn't required for the company to grow. Crypto isn't even its most attractive growth opportunity. The company's prediction market has become a hot resource for investors who want to place bets on sports and other events. Robinhood wrapped up 2025 with more than 12 billion event contracts traded, with 8.5 billion of those trades taking place in the fourth quarter.

That type of momentum should translate into meaningful growth throughout 2026 and can push the stock higher.

Micron is riding the AI wave with its memory-storage technology

Micron Technology (NASDAQ: MU) has turned into a top-performing AI stock that has more than quadrupled over the past year. The company produces memory-storage components that are necessary for AI chips to handle intense workloads. As demand for AI chips increases, Micron will also deliver more sales.

That trend unfolded throughout 2025, with the fiscal 2026 first quarter highlighting the company's huge potential in the years ahead. During that quarter, sales surged by 57% year over year, and net income almost tripled.

Memory storage for AI chips has higher growth potential and better margins than consumer products. That was one of the major reasons Micron announced it is exiting the consumer business by the end of the second quarter. Then, it can focus more time and resources on its AI opportunity.

Management also issued extremely bullish second-quarter guidance, suggesting substantial records in revenue, gross margins, earnings per share, and free cash flow. Impressive growth across those metrics should help the stock continue to climb higher.

Iren is a smaller AI stock that addresses a crucial bottleneck

Iren (NASDAQ: IREN) isn't as large as the other companies on this list. It has a $14 billion market cap, but a 440% surge over the past year shows strong enthusiasm for the stock.

The company builds and owns AI data centers that provide energy and AI infrastructure for leading tech companies. This combination is rare, since most data centers aren't built specifically for AI workloads. Iren also has AI data centers that contain more than 1 gigawatt of capacity in one location, instead of a bunch of smaller data centers with less energy capacity.

The stock's bullish thesis became clear when it secured a five-year, $9.7 billion deal with Microsoft for 200 megawatts. Those megawatts and the corresponding AI infrastructure will be delivered in Iren's 750-megawatt location in Childress, Texas.

Iren has more than 4.5 gigawatts of capacity secured for AI data centers, which means it can sign several deals like the Microsoft contract. In fact, it's only using about 10% of its energy capacity right now.

The company recently acquired a 1.6-gigawatt site in Oklahoma, so it can build its gigawatt pipeline quickly. Iren will have to build an AI data center from scratch in Oklahoma before it can be monetized, but it is one of the fastest builders in the industry. Its 1.4-gigawatt Sweetwater 1 site in Texas is projected to be energized in April, and the company has touted multiple times that it never misses deadlines.

Lenders believe in the company's business model, based on its ability to secure $3.6 billion in financing for graphics processing units for under 6%. The low interest rate indicates that lenders do not view Iren as a high-risk business.

Marc Guberti has positions in Iren. The Motley Fool has positions in and recommends Micron Technology and Microsoft. The Motley Fool has a disclosure policy.