After shocking quarter, IBM insists that AI isn’t killing the mainframe

By GrowthMax Agency Published July 23, 2026 • 5 min read

IBM’s Mainframe Business Takes a Hit: A 42% Decline

The latest earnings report from IBM has sent shockwaves through the tech industry, with the company’s mainframe business experiencing a staggering 42% decline. This is a significant blow to IBM’s revenue, as mainframes are a crucial part of the company’s infrastructure category. The decline is attributed to tens of customers opting not to purchase new mainframes during the quarter, instead choosing to allocate their budget to other areas with extreme price increases, such as data center gear and PCs.

This development is reminiscent of the challenges faced by Blackberry in 2010, when the company struggled to adapt to the shift towards touchscreen smartphones. Similarly, IBM’s mainframe business is facing a significant disruption, this time driven by the AI boom. The high cost increases of 15% to 30% for data center gear and PCs have forced enterprise hardware makers like Dell and HP to raise prices, leading to a temporary blip in IBM’s mainframe sales.

The decline in mainframe sales has a cascading effect on IBM’s revenue, as the company earns $3 in software revenue for every $1 of mainframe hardware it sells. This highlights the importance of the mainframe business to IBM’s overall financial health. Despite the challenges, IBM CEO Arvind Krishna remains optimistic, stating that customers will still purchase new mainframes eventually, along with their new software contracts.

IBM’s Decision Logic: A Temporary Blip or a Structural Shift?

IBM’s CEO and CFO have downplayed the significance of the mainframe decline, attributing it to a temporary blip caused by the AI boom. However, a closer examination of the company’s decision-making logic reveals a more complex picture. The AI boom has created a surge in demand for data center gear and PCs, leading to high cost increases. This has forced enterprise hardware makers to raise prices, making mainframes less competitive.

From an operational perspective, IBM’s mainframe business is heavily dependent on the sale of hardware, which generates significant revenue and profit margins. The decline in mainframe sales has a direct impact on the company’s bottom line, making it essential for IBM to adapt to the changing market dynamics. The company’s decision to lower its full-year growth forecasts suggests that the impact of the mainframe decline will be felt throughout the year.

Furthermore, the fact that tens of customers opted not to purchase new mainframes during the quarter raises questions about the long-term viability of the mainframe business. While IBM’s CEO remains optimistic, the company’s incentive structure suggests that it may be more challenging to recover from this decline than initially thought.

The Winners and Losers: A Shift in the Tech Landscape

The decline of IBM’s mainframe business has significant implications for the tech industry, with both winners and losers emerging. The AI boom has created a surge in demand for data center gear and PCs, benefiting companies like Dell and HP. However, the high cost increases have also forced these companies to raise prices, making mainframes less competitive.

From a market perspective, the decline of IBM’s mainframe business highlights the shifting landscape of the tech industry. The AI boom has created new opportunities for companies that can adapt quickly to changing market dynamics. However, it also poses significant challenges for companies that are heavily dependent on traditional business models.

The impact of the mainframe decline will be felt across the supply chain, with companies that rely on IBM’s mainframe business likely to experience a decline in revenue. This includes software companies that provide mainframe-compatible solutions, as well as system integrators that rely on IBM’s mainframe business for a significant portion of their revenue.

The Skeptical Case: Is IBM’s Mainframe Business in Terminal Decline?

Despite IBM’s CEO’s optimism, there are valid reasons to question the long-term viability of the mainframe business. The AI boom has created a surge in demand for data center gear and PCs, making mainframes less competitive. Furthermore, the decline in mainframe sales has a cascading effect on IBM’s revenue, making it challenging for the company to recover.

Historically, companies that have failed to adapt to changing market dynamics have struggled to recover. The decline of Blackberry’s smartphone business is a prime example of this. While IBM’s mainframe business is not yet in terminal decline, the company’s failure to adapt to the AI boom poses significant challenges for its long-term viability.

The Signal to Watch Next: IBM’s Mainframe Sales in the Next Quarter

The next quarter will be crucial for IBM’s mainframe business, as the company looks to recover from the decline in sales. Investors will be watching closely to see if IBM can meet its revised growth forecasts, and if the mainframe business can return to its previous levels of growth.

A key indicator to watch will be the number of mainframe sales in the next quarter. If IBM can meet its revised growth forecasts and show a significant increase in mainframe sales, it will be a positive sign for the company’s long-term viability. However, if the decline in mainframe sales continues, it will raise significant concerns about the company’s ability to adapt to changing market dynamics.

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By Priya Nair, AI & Startup Reporter at TrendFlashy

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