Microsoft’s Most Important Business Line That Investors Miss

Microsoft’s Most Important Business Line That Investors Miss

Products that may seem “boring” are essential for generating revenue that can fund more adventurous investments.

As of January 2024, Office 365 has quietly achieved an impressive milestone of 400 million paid seats. Microsoft (MSFT 0.26%) products have become deeply integrated into our professional routines, akin to meetings that could have been emails. These “boring” yet reliable tools are the backbone of Microsoft’s strategy as it strives to compete in the rapidly evolving field of artificial intelligence (AI).

As advancements in AI continue to automate various aspects of the professional landscape, the legacy suite of Microsoft 365 applications shows no signs of decline. This consistent ability to generate substantial revenue underpins Microsoft’s financial capacity to invest in more ambitious AI initiatives, making it a pivotal player in the tech industry.

In fiscal year 2024, Office products alone generated a remarkable $54.9 billion, accounting for 22% of Microsoft’s total revenue. This robust performance ensures that Microsoft 365 will sustain the company’s position as a leader in AI innovation for many years ahead, which is promising news for long-term investors in Microsoft.

Person on keyboard with the letters AI.

Image source: Getty Images.

What Challenges Does Microsoft Face in Its AI Strategy?

Microsoft is currently playing catch-up in the realm of generative AI. OpenAI has taken the lead with over 200 million weekly active users, setting a high standard with the launch of ChatGPT in 2022. Competing tech giants like Alphabet’s Google and Meta Platforms also possess AI models that closely rival OpenAI’s capabilities.

When compared to these industry leaders, Microsoft has historically been slow to define and implement its AI strategy. However, through strategic partnerships with OpenAI, Microsoft has significantly narrowed this gap. By the end of 2024, the company has also initiated the development of AI models in-house, which could further enhance its competitive edge.

To maintain its position in the AI landscape, Microsoft has invested heavily in Nvidia chips and is continuously innovating its cloud computing platform, Azure, as well as its intelligent assistant, Copilot. These strategic initiatives are crucial for keeping pace with other major players in the AI industry.

Microsoft requires substantial capital investments to stay competitive in this rapidly changing landscape. Fortunately, its long-established productivity and business lines serve as a stable engine, driving the company into a new era of automation.

Why Microsoft Office Products Maintain Competitive Advantage?

Typically, when one thinks of a legacy business, it often conjures images of outdated and declining revenue sources. However, Microsoft’s Office products tell a different story. Microsoft 365, which includes popular applications such as Excel, Word, PowerPoint, Teams, and Outlook, continues to experience double-digit growth year over year.

This growth indicates that these product lines are not only firmly established but are utilized so universally among businesses and individual users that dethroning them will prove to be a monumental challenge.

These offerings are also largely recession-resistant, as companies are unlikely to eliminate them during economic downturns. Moreover, Microsoft transitioned to a subscription model over a decade ago, which has rendered the revenue streams from these products highly predictable and reliable.

The impressive growth of Microsoft’s legacy products is encouraging news for the substantial investments the company plans to make in the coming years. Microsoft has announced that it is on track to invest around $80 billion in developing AI-enabled data centers, which will be essential for training and deploying advanced AI models and applications.

How Is Microsoft’s AI Revenue Trajectory Shaping Up?

During its earnings call on July 30, Microsoft disclosed that its Azure segment generated a staggering $75 billion in revenue for the first time, reflecting a 34% increase, according to insights from chairman and CEO Satya Nadella.

Nadella emphasized, “Cloud and AI is the driving force of business transformation across every industry and sector. We’re innovating across the tech stack to help customers adapt and grow in this new era.” This statement underscores Microsoft’s commitment to leveraging AI and cloud technologies to drive business success.

Microsoft’s market capitalization is approaching an impressive $4 trillion, suggesting ample growth potential, especially if the company’s significant investments in AI yield positive results.

Why Microsoft Is a Reliable Long-Term Investment?

For investors, Microsoft represents a solid long-term investment opportunity, primarily due to its stable product offerings that have stood the test of time. With a quarterly dividend of $0.91 per share, investors benefit from both value appreciation and growth, although the dividend yield remains below 1%. Microsoft’s emerging technologies, which are innovative and agentic, will continue to generate substantial revenue alongside its well-established and dependable products.

Overall, Microsoft’s total revenue increased by 18% from Q4 2024 to Q4 2025. While there are inherent risks associated with investing in AI technologies, the stability provided by Microsoft’s established business lines significantly mitigates the risks compared to many of its competitors.

Catie Hogan has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Meta Platforms, Microsoft, and Nvidia. The Motley Fool recommends the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool has a disclosure policy.

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